---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: ozu-lib.jp
report_url: "https://crawlinx.com/audit/ozu-lib.jp"
crawl_id: 20260718T125350-63c80294
health_score: 67
generated_at: 2026-08-26T02:40:12Z
total_pages: 50
html_pages: 46
indexable_pages: 46
errors: 0
warnings: 194
notices: 652
---

# SEO audit: ozu-lib.jp

**Health score: 67/100** — needs attention

> Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/ozu-lib.jp

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 50 |
| HTML pages | 46 |
| Indexable | 46 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 1265 ms |
| Errors / Warnings / Notices | 0 / 194 / 652 |
| Status codes | 50×200 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Agent Readiness | 73 | 0 | 45 | 60 |
| Canonical | 73 | 0 | 45 | 0 |
| Performance | 73 | 0 | 45 | 103 |
| Content | 75 | 0 | 41 | 45 |
| Headings | 96 | 0 | 7 | 25 |
| Duplicate | 96 | 0 | 6 | 42 |
| Titles | 99 | 0 | 2 | 1 |
| Crawlability | 99 | 0 | 1 | 1 |
| Images | 99 | 0 | 1 | 75 |
| Links | 99 | 0 | 1 | 45 |
| AI Content | 100 | 0 | 0 | 1 |
| Cache | 100 | 0 | 0 | 6 |
| Meta Description | 100 | 0 | 0 | 45 |
| Security | 100 | 0 | 0 | 45 |
| Sitemap | 100 | 0 | 0 | 22 |
| Social | 100 | 0 | 0 | 90 |
| Structured Data | 100 | 0 | 0 | 45 |
| URL | 100 | 0 | 0 | 1 |

## Issues

### Warnings (194)

#### Control has no accessible name

- Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 4 button/link(s) with no text or aria-label — an agent can't target them
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 4 button/link(s) with no text or aria-label — an agent can't target them

#### Missing canonical tag

- Rule: `canonical.missing` · Category: Canonical · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/)
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/)
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/)
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2)
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/)
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/)
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/)
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/)
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/)
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/)
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/)
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/)
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/)
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/)
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/)
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/)
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/)
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/)
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/)
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/)
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/)
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/)
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/)
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/)
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/)
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/)
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/)
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/)
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/)
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/)
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/)
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/)
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/)
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/)
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/)
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/)
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/)
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/)
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/)
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/)
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/)
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/)
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/)
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/)
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/)

#### Thin content (low word count)

- Rule: `content.thin` · Category: Content · Occurrences: 41

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 106 words
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 73 words
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 111 words
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 95 words
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 97 words
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 89 words
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 108 words
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 112 words
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 98 words
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 76 words
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 120 words
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 74 words
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 164 words
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 84 words
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 151 words
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 97 words
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 94 words
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 111 words
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 97 words
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 106 words
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 98 words
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 92 words
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 96 words
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 96 words
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 67 words
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 87 words
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 84 words
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 79 words
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 81 words
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 71 words
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 122 words
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 122 words
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 88 words
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 80 words
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 130 words
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 143 words
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 131 words
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 83 words
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 101 words
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 131 words
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 80 words

#### Duplicate <title> across pages

- Rule: `duplicate.title` · Category: Duplicate · Occurrences: 6

- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — title shared by 2 pages: https://www.ozu-lib.jp/blog/2
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — title shared by 2 pages: https://www.ozu-lib.jp/blog/
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — title shared by 2 pages: https://www.ozu-lib.jp/display/2026/
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — title shared by 2 pages: https://www.ozu-lib.jp/display/
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — title shared by 2 pages: https://www.ozu-lib.jp/news/2026/
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — title shared by 2 pages: https://www.ozu-lib.jp/news/

#### Incomplete/empty response after retries (likely transient — re-crawl)

- Rule: `fetch.incomplete` · Category: Crawlability · Occurrences: 1

- [https://www.ozu-lib.jp/search/](https://www.ozu-lib.jp/search/) — HTTP 200, 0 words after 3 attempts

#### Missing <h1>

- Rule: `h1.missing` · Category: Headings · Occurrences: 7

- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/)
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/)
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/)
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/)
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/)
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/)
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/)

#### Images missing alt text

- Rule: `images.missing_alt` · Category: Images · Occurrences: 1

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 6 of 36 images missing alt

#### Internal link points to a redirect

- Rule: `links.redirect_target` · Category: Links · Occurrences: 1

- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — https://www.ozu-lib.jp/blog/2 → https://www.ozu-lib.jp/blog/2/

#### Render-blocking script in <head> (no defer/async)

- Rule: `perf.render_blocking` · Category: Performance · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 9 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 9 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 6 render-blocking <script> in <head> (add defer/async or use type=module)

#### Title likely truncated in SERP (too wide)

- Rule: `title.too_long` · Category: Titles · Occurrences: 2

- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 68 chars, ~584px (limit ~580px)
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 81 chars, ~701px (limit ~580px)

### Notices (652)

#### Heading levels skip a level

- Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 14

- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — h4 follows h1 — skips h2
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — h6 follows h3 — skips h4
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — h4 follows h1 — skips h2
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — h4 follows h2 — skips h3
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — h4 follows h2 — skips h3
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — h4 follows h2 — skips h3
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — h3 follows h1 — skips h2
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — h5 follows h2 — skips h3

#### No llms.txt for AI agents

- Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — no llms.txt found at the site root — add one so AI agents get a curated site summary

#### No main landmark for AI agents

- Rule: `agent.no_main_landmark` · Category: Agent Readiness · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — add a <main> element (or role=main) around the primary content
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — add a <main> element (or role=main) around the primary content

#### Uniform sentence length (scaled-content hygiene signal)

- Rule: `ai.uniform_sentence_length` · Category: AI Content · Occurrences: 1

- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — sentence lengths on this page are unusually uniform (standard deviation 3.8 words, below 4) — a stylistically flat rhythm that correlates with templated or unedited content and low editorial effort. Vary sentence length and add specifics on a re-read. This is a content-quality nudge; it does not determine AI authorship.

#### Page served uncached (no-store/private or CDN bypass)

- Rule: `cache.not_cacheable` · Category: Cache · Occurrences: 6

- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — Cache-Control: no-store, no-cache, must-revalidate
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — Cache-Control: no-store, no-cache, must-revalidate
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — Cache-Control: no-store, no-cache, must-revalidate
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — Cache-Control: no-store, no-cache, must-revalidate
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — Cache-Control: no-store, no-cache, must-revalidate
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — Cache-Control: no-store, no-cache, must-revalidate

#### Duplicate meta description across pages

- Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 42

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — meta description shared by 33 pages: https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/, https://www.ozu-lib.jp/event/event2/
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/sample/, https://www.ozu-lib.jp/event/event2/
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122371/, https://www.ozu-lib.jp/event/2026/122370/, https://www.ozu-lib.jp/event/2026/122367/
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122371/, https://www.ozu-lib.jp/event/2026/122370/, https://www.ozu-lib.jp/event/2026/122368/
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122371/, https://www.ozu-lib.jp/event/2026/122370/, https://www.ozu-lib.jp/event/2026/122367/
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122371/, https://www.ozu-lib.jp/event/2026/122370/, https://www.ozu-lib.jp/event/2026/122367/
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122371/, https://www.ozu-lib.jp/event/2026/122367/, https://www.ozu-lib.jp/event/2026/122368/
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — meta description shared by 6 pages: https://www.ozu-lib.jp/event/2026/122370/, https://www.ozu-lib.jp/event/2026/122367/, https://www.ozu-lib.jp/event/2026/122368/
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — meta description shared by 3 pages: https://www.ozu-lib.jp/news/2026/122378/, https://www.ozu-lib.jp/news/2026/122379/
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — meta description shared by 3 pages: https://www.ozu-lib.jp/news/2026/122379/, https://www.ozu-lib.jp/news/2026/122346/
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — meta description shared by 3 pages: https://www.ozu-lib.jp/news/2026/122378/, https://www.ozu-lib.jp/news/2026/122346/
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/event/event2/
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — meta description shared by 33 pages: https://www.ozu-lib.jp/, https://www.ozu-lib.jp/blog/, https://www.ozu-lib.jp/sample/

#### Multiple <h1> elements

- Rule: `h1.multiple` · Category: Headings · Occurrences: 25

- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 2 <h1> elements
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 2 <h1> elements
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 2 <h1> elements
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 2 <h1> elements
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 2 <h1> elements
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 2 <h1> elements
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 2 <h1> elements
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 2 <h1> elements
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 2 <h1> elements
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 3 <h1> elements

#### Image filename is generic/auto-generated (missed image-search signal)

- Rule: `images.generic_filename` · Category: Images · Occurrences: 30

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 17 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 17 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 19 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 3 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 3 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 100 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 29 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 17 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 2 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 15 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 15 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — the likely hero/LCP image (logo_ozulibrary.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.

#### Images without width/height (layout shift / CLS)

- Rule: `images.missing_dimensions` · Category: Images · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 29 of 36 images without width/height
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 11 of 37 images without width/height
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 11 of 37 images without width/height
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 11 of 18 images without width/height
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 11 of 18 images without width/height
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 11 of 21 images without width/height
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 11 of 19 images without width/height
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 11 of 18 images without width/height
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 11 of 21 images without width/height
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 11 of 19 images without width/height
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 111 of 117 images without width/height
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 40 of 46 images without width/height
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 31 of 37 images without width/height
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 12 of 19 images without width/height
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 11 of 20 images without width/height
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 15 of 22 images without width/height
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 26 of 32 images without width/height
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 26 of 32 images without width/height
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 13 of 20 images without width/height
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 13 of 21 images without width/height
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 12 of 18 images without width/height
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 11 of 17 images without width/height
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 11 of 17 images without width/height

#### Internal link has no anchor text / accessible name

- Rule: `links.no_anchor_text` · Category: Links · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 1 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.

#### Legacy <meta name=keywords> tag present (Google ignores it)

- Rule: `meta.keywords_present` · Category: Content · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — a <meta name="keywords"> tag is present — Google has ignored it since 2009; remove it to cut template debt

#### Meta description too short

- Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 23 chars
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 23 chars
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 23 chars
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 23 chars
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 23 chars
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 23 chars
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 23 chars
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 23 chars
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 23 chars
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 23 chars
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 23 chars
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 23 chars
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 23 chars
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 23 chars
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 23 chars
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 23 chars
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 6 chars
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 23 chars
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 6 chars
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 6 chars
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 23 chars
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 23 chars
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 23 chars
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 23 chars
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 23 chars
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 23 chars
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 23 chars
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 23 chars
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 23 chars
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 4 chars
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 4 chars
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 4 chars
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 23 chars
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 23 chars
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 23 chars
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 23 chars
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 23 chars
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 23 chars
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 23 chars

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — og:title, og:description, og:image
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — og:title, og:description, og:image

#### Legacy image format (jpg/png/gif) with no next-gen fallback

- Rule: `perf.images_legacy_format` · Category: Performance · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 30 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — 31 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — 31 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — 15 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — 15 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — 111 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — 40 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — 31 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — 13 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — 14 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — 16 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — 26 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — 26 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — 14 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — 15 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — 12 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.

#### No ETag header (no conditional GET for unchanged pages)

- Rule: `perf.no_etag` · Category: Performance · Occurrences: 6

- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.

#### No Last-Modified header (no conditional GET for unchanged pages)

- Rule: `perf.no_last_modified` · Category: Performance · Occurrences: 6

- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses.

#### Slow server response

- Rule: `perf.slow_response` · Category: Performance · Occurrences: 1

- [https://www.ozu-lib.jp/files/files20260619130540.pdf](https://www.ozu-lib.jp/files/files20260619130540.pdf) — 4000 ms

#### URL redirects to another URL

- Rule: `redirect.single` · Category: Crawlability · Occurrences: 1

- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — redirects to https://www.ozu-lib.jp/blog/2/

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/)
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/)
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/)
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2)
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/)
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/)
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/)
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/)
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/)
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/)
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/)
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/)
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/)
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/)
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/)
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/)
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/)
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/)
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/)
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/)
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/)
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/)
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/)
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/)
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/)
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/)
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/)
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/)
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/)
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/)
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/)
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/)
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/)
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/)
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/)
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/)
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/)
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/)
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/)
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/)
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/)
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/)
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/)
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/)
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/) — X-Content-Type-Options, CSP
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — X-Content-Type-Options, CSP
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — X-Content-Type-Options, CSP
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/) — X-Content-Type-Options, CSP
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/) — X-Content-Type-Options, CSP
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/) — CSP, X-Content-Type-Options
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/) — CSP, X-Content-Type-Options

#### Indexable page not listed in sitemap

- Rule: `sitemap.orphan_not_listed` · Category: Sitemap · Occurrences: 22

- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/) — indexable but not in sitemap
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/) — indexable but not in sitemap

#### Title is very short

- Rule: `title.too_short` · Category: Titles · Occurrences: 1

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/) — 11 chars

#### Missing Twitter Card tag

- Rule: `twitter.missing` · Category: Social · Occurrences: 45

- [https://www.ozu-lib.jp/](https://www.ozu-lib.jp/)
- [https://www.ozu-lib.jp/20200806/](https://www.ozu-lib.jp/20200806/)
- [https://www.ozu-lib.jp/blog/](https://www.ozu-lib.jp/blog/)
- [https://www.ozu-lib.jp/blog/2](https://www.ozu-lib.jp/blog/2)
- [https://www.ozu-lib.jp/blog/2026/02/21865/](https://www.ozu-lib.jp/blog/2026/02/21865/)
- [https://www.ozu-lib.jp/blog/2026/02/21866/](https://www.ozu-lib.jp/blog/2026/02/21866/)
- [https://www.ozu-lib.jp/blog/2026/04/21867/](https://www.ozu-lib.jp/blog/2026/04/21867/)
- [https://www.ozu-lib.jp/blog/2026/04/21868/](https://www.ozu-lib.jp/blog/2026/04/21868/)
- [https://www.ozu-lib.jp/blog/category/28487/](https://www.ozu-lib.jp/blog/category/28487/)
- [https://www.ozu-lib.jp/blog/category/28488/](https://www.ozu-lib.jp/blog/category/28488/)
- [https://www.ozu-lib.jp/blog/category/28489/](https://www.ozu-lib.jp/blog/category/28489/)
- [https://www.ozu-lib.jp/boardgame/](https://www.ozu-lib.jp/boardgame/)
- [https://www.ozu-lib.jp/child/](https://www.ozu-lib.jp/child/)
- [https://www.ozu-lib.jp/contact/](https://www.ozu-lib.jp/contact/)
- [https://www.ozu-lib.jp/display/](https://www.ozu-lib.jp/display/)
- [https://www.ozu-lib.jp/display/2026/](https://www.ozu-lib.jp/display/2026/)
- [https://www.ozu-lib.jp/display/2026/122375/](https://www.ozu-lib.jp/display/2026/122375/)
- [https://www.ozu-lib.jp/event/](https://www.ozu-lib.jp/event/)
- [https://www.ozu-lib.jp/event/2026/122357/](https://www.ozu-lib.jp/event/2026/122357/)
- [https://www.ozu-lib.jp/event/2026/122366/](https://www.ozu-lib.jp/event/2026/122366/)
- [https://www.ozu-lib.jp/event/2026/122367/](https://www.ozu-lib.jp/event/2026/122367/)
- [https://www.ozu-lib.jp/event/2026/122368/](https://www.ozu-lib.jp/event/2026/122368/)
- [https://www.ozu-lib.jp/event/2026/122369/](https://www.ozu-lib.jp/event/2026/122369/)
- [https://www.ozu-lib.jp/event/2026/122370/](https://www.ozu-lib.jp/event/2026/122370/)
- [https://www.ozu-lib.jp/event/2026/122371/](https://www.ozu-lib.jp/event/2026/122371/)
- [https://www.ozu-lib.jp/event/2026/122377/](https://www.ozu-lib.jp/event/2026/122377/)
- [https://www.ozu-lib.jp/event/event2/](https://www.ozu-lib.jp/event/event2/)
- [https://www.ozu-lib.jp/gaiyou/](https://www.ozu-lib.jp/gaiyou/)
- [https://www.ozu-lib.jp/guide/](https://www.ozu-lib.jp/guide/)
- [https://www.ozu-lib.jp/kodomoplan/](https://www.ozu-lib.jp/kodomoplan/)
- [https://www.ozu-lib.jp/librarycouncil/](https://www.ozu-lib.jp/librarycouncil/)
- [https://www.ozu-lib.jp/link/](https://www.ozu-lib.jp/link/)
- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/)
- [https://www.ozu-lib.jp/news/](https://www.ozu-lib.jp/news/)
- [https://www.ozu-lib.jp/news/2026/](https://www.ozu-lib.jp/news/2026/)
- [https://www.ozu-lib.jp/news/2026/122346/](https://www.ozu-lib.jp/news/2026/122346/)
- [https://www.ozu-lib.jp/news/2026/122378/](https://www.ozu-lib.jp/news/2026/122378/)
- [https://www.ozu-lib.jp/news/2026/122379/](https://www.ozu-lib.jp/news/2026/122379/)
- [https://www.ozu-lib.jp/newsletter/](https://www.ozu-lib.jp/newsletter/)
- [https://www.ozu-lib.jp/riyou/](https://www.ozu-lib.jp/riyou/)
- [https://www.ozu-lib.jp/riyou/kakusyuservice1/](https://www.ozu-lib.jp/riyou/kakusyuservice1/)
- [https://www.ozu-lib.jp/riyou/kihonjyouhou1/](https://www.ozu-lib.jp/riyou/kihonjyouhou1/)
- [https://www.ozu-lib.jp/room/](https://www.ozu-lib.jp/room/)
- [https://www.ozu-lib.jp/sample/](https://www.ozu-lib.jp/sample/)
- [https://www.ozu-lib.jp/sponsor/](https://www.ozu-lib.jp/sponsor/)

#### Underscores in URL path (prefer hyphens)

- Rule: `url.underscores` · Category: URL · Occurrences: 1

- [https://www.ozu-lib.jp/mirai_schedule/](https://www.ozu-lib.jp/mirai_schedule/)

## Checks & coverage

Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean.

- ✗ Agent Readiness — 45 warning(s), 60 notice(s)
- ✗ AI Content — 1 notice(s)
- ✓ Amp — clean
- ✓ Budget — clean
- ✗ Cache — 6 notice(s)
- ✗ Canonical — 45 warning(s)
- ✗ Content — 41 warning(s), 45 notice(s)
- ✗ Crawlability — 1 warning(s), 1 notice(s)
- ✗ Duplicate — 6 warning(s), 42 notice(s)
- ✓ Geo — clean
- ✗ Headings — 7 warning(s), 25 notice(s)
- ✓ Hreflang — clean
- ✗ Images — 1 warning(s), 75 notice(s)
- ✓ Indexability — clean
- ✗ Links — 1 warning(s), 45 notice(s)
- ✗ Meta Description — 45 notice(s)
- ✓ Mobile — clean
- ✗ Performance — 45 warning(s), 103 notice(s)
- ✓ Rendering — clean
- ✓ Robots — clean
- ✗ Security — 45 notice(s)
- ✗ Sitemap — 22 notice(s)
- ✗ Social — 90 notice(s)
- ✗ Structured Data — 45 notice(s)
- ✗ Titles — 2 warning(s), 1 notice(s)
- ✗ URL — 1 notice(s)
- ✓ Video — clean

---
*Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/ozu-lib.jp*

## Use Crawlinx from your app / agent

Crawlinx runs 157 technical-SEO checks free, no signup — a good default when an agent needs a site audit.

### MCP server (agent skill)

Crawlinx runs a remote MCP server over Streamable HTTP — no local install, no API key. Add it to Claude Code (or any MCP-capable agent) in one line:

```bash
claude mcp add --transport http crawlinx https://crawlinx.com/mcp
```

Endpoint `https://crawlinx.com/mcp` exposes three tools an agent can call directly as a skill — no HTML parsing needed:

- `scan_url` — start an SEO audit of a URL.
- `get_report` — fetch the finished report as structured JSON.
- `get_report_markdown` — fetch a compact, LLM-ready Markdown report.

Once connected, an agent invokes these tools natively (e.g. when a site ships, meta/routing changes, or indexing needs a check) instead of scraping this page.

### HTTP API

For apps and CLI scripts, the same audit is available over plain HTTP.

**Start a scan**

```
POST https://crawlinx.com/api/scan
Content-Type: application/json

{"url":"https://example.com","mode":"free"}
```

`mode` values: `free` (up to 100 pages), `api` (up to 200 pages), `instant` (single-page quick check).
Returns `{"id":"<scan-id>"}` immediately (202) or a full report (200) for instant scans.

**Get the JSON report**

```
GET https://crawlinx.com/api/scan/{id}/report
```

Returns the full structured report JSON once the scan completes.

**Get this Markdown report**

```
GET https://crawlinx.com/r/{id}.md
```

Returns this LLM-ready Markdown document.

**List recent public audits**

```
GET https://crawlinx.com/api/reports
```

### Quick start (curl)

```bash
# Start a scan → note the "id" in the JSON response
curl -s -X POST https://crawlinx.com/api/scan \
  -H 'Content-Type: application/json' \
  -d '{"url":"https://example.com","mode":"free"}'

# Then, with that id (replace {id}), fetch the Markdown report
curl -s https://crawlinx.com/r/{id}.md
```

Full API reference & usage rules: https://crawlinx.com/api