---
tool: Crawlinx SEO audit
source: https://crawlinx.com
domain: zencode.jp
report_url: "https://crawlinx.com/audit/zencode.jp"
crawl_id: 20260719T155849-e63ea919
health_score: 65
generated_at: 2026-07-29T01:10:46Z
total_pages: 15
html_pages: 15
indexable_pages: 15
errors: 0
warnings: 71
notices: 96
---

# SEO audit: zencode.jp

**Health score: 65/100** — needs attention

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

## Overview

| Metric | Value |
| --- | --- |
| Pages crawled | 15 |
| HTML pages | 15 |
| Indexable | 15 |
| Non-indexable | 0 |
| Orphan pages | 0 |
| Broken internal links | 0 |
| Avg response time | 988 ms |
| Errors / Warnings / Notices | 0 / 71 / 96 |
| Status codes | 15×200 |

## Categories

| Category | Score | Errors | Warnings | Notices |
| --- | ---: | ---: | ---: | ---: |
| Canonical | 70 | 0 | 15 | 0 |
| Performance | 70 | 0 | 15 | 5 |
| Meta Description | 74 | 0 | 13 | 2 |
| Content | 80 | 0 | 10 | 4 |
| Agent Readiness | 82 | 0 | 9 | 11 |
| Headings | 90 | 0 | 5 | 0 |
| Duplicate | 92 | 0 | 4 | 2 |
| Images | 100 | 0 | 0 | 5 |
| Links | 100 | 0 | 0 | 6 |
| Robots | 100 | 0 | 0 | 1 |
| Security | 100 | 0 | 0 | 15 |
| Social | 100 | 0 | 0 | 30 |
| Structured Data | 100 | 0 | 0 | 15 |

## Issues

### Warnings (71)

#### Control has no accessible name

- Rule: `agent.control_no_name` · Category: Agent Readiness · Occurrences: 9

- [https://zencode.jp/](https://zencode.jp/) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — 2 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — 3 button/link(s) with no text or aria-label — an agent can't target them
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html) — 3 button/link(s) with no text or aria-label — an agent can't target them

#### Missing canonical tag

- Rule: `canonical.missing` · Category: Canonical · Occurrences: 15

- [https://zencode.jp/](https://zencode.jp/)
- [https://zencode.jp/about.html](https://zencode.jp/about.html)
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html)
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html)
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html)
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html)
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html)
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html)
- [https://zencode.jp/index.html](https://zencode.jp/index.html)
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html)
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html)
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html)
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html)

#### Thin content (low word count)

- Rule: `content.thin` · Category: Content · Occurrences: 10

- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — 96 words
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — 6 words
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html) — 142 words
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html) — 4 words
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — 97 words
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html) — 19 words
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — 7 words
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — 124 words
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — 4 words
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html) — 4 words

#### Duplicate page content

- Rule: `duplicate.content` · Category: Duplicate · Occurrences: 2

- [https://zencode.jp/](https://zencode.jp/) — content shared by 2 pages: https://zencode.jp/index.html
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — content shared by 2 pages: https://zencode.jp/

#### Duplicate <title> across pages

- Rule: `duplicate.title` · Category: Duplicate · Occurrences: 2

- [https://zencode.jp/](https://zencode.jp/) — title shared by 2 pages: https://zencode.jp/index.html
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — title shared by 2 pages: https://zencode.jp/

#### Missing <h1>

- Rule: `h1.missing` · Category: Headings · Occurrences: 5

- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html)
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html)
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html)

#### Hero/LCP image is lazy-loaded (loading=lazy delays LCP)

- Rule: `images.no_lazy_lcp_candidate` · Category: Performance · Occurrences: 2

- [https://zencode.jp/](https://zencode.jp/) — the likely hero/LCP image (web_1.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — the likely hero/LCP image (web_1.png) has loading="lazy" — Google explicitly warns against lazy-loading the LCP image, because it delays the fetch until layout completes. Remove loading="lazy" from the first significant image and add fetchpriority="high" instead.

#### Missing meta description

- Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 13

- [https://zencode.jp/about.html](https://zencode.jp/about.html)
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html)
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html)
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html)
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html)
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html)
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html)
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html)
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html)
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html)
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html)

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

- Rule: `perf.render_blocking` · Category: Performance · Occurrences: 13

- [https://zencode.jp/](https://zencode.jp/) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — 3 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html) — 4 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — 1 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html) — 2 render-blocking <script> in <head> (add defer/async or use type=module)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — 5 render-blocking <script> in <head> (add defer/async or use type=module)

### Notices (96)

#### Heading levels skip a level

- Rule: `agent.heading_skip` · Category: Agent Readiness · Occurrences: 5

- [https://zencode.jp/](https://zencode.jp/) — h4 follows h2 — skips h3
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — h3 follows h1 — skips h2
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — h4 follows h2 — skips h3
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html) — h3 follows h1 — skips h2
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — h3 follows h1 — skips h2

#### No llms.txt for AI agents

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

- [https://zencode.jp/](https://zencode.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: 5

- [https://zencode.jp/](https://zencode.jp/) — add a <main> element (or role=main) around the primary content
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — add a <main> element (or role=main) around the primary content
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html) — add a <main> element (or role=main) around the primary content
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — add a <main> element (or role=main) around the primary content
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — add a <main> element (or role=main) around the primary content

#### Low text-to-HTML ratio

- Rule: `content.low_ratio` · Category: Content · Occurrences: 4

- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html) — 0.2%
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — 2.0%
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — 0.1%
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html) — 0.5%

#### Duplicate meta description across pages

- Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 2

- [https://zencode.jp/](https://zencode.jp/) — meta description shared by 2 pages: https://zencode.jp/index.html
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — meta description shared by 2 pages: https://zencode.jp/

#### Likely hero image lacks fetchpriority=high

- Rule: `images.hero_no_fetchpriority` · Category: Performance · Occurrences: 2

- [https://zencode.jp/about.html](https://zencode.jp/about.html) — the likely hero/LCP image (photo-1522071820081-009f0129c71c) 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://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — the likely hero/LCP image (zencode.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: 5

- [https://zencode.jp/](https://zencode.jp/) — 4 of 4 images without width/height
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — 1 of 1 images without width/height
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — 3 of 3 images without width/height
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — 5 of 5 images without width/height
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — 4 of 4 images without width/height

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

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

- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — 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.

#### Page has only one internal inlink (fragile crawl path)

- Rule: `links.single_inlink` · Category: Links · Occurrences: 5

- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path.

#### Meta description too short

- Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 2

- [https://zencode.jp/](https://zencode.jp/) — 44 chars
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — 44 chars

#### Missing Open Graph tags

- Rule: `og.missing` · Category: Social · Occurrences: 15

- [https://zencode.jp/](https://zencode.jp/) — og:title, og:description, og:image
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — og:title, og:description, og:image
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — og:title, og:description, og:image
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — og:title, og:description, og:image
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html) — og:title, og:description, og:image
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html) — og:title, og:description, og:image
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — og:title, og:description, og:image
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html) — og:title, og:description, og:image
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — og:title, og:description, og:image
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — og:title, og:description, og:image
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html) — og:title, og:description, og:image
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — og:title, og:description, og:image
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html) — og:title, og:description, og:image
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — og:title, og:description, og:image
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html) — 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: 3

- [https://zencode.jp/](https://zencode.jp/) — 4 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://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — 5 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://zencode.jp/index.html](https://zencode.jp/index.html) — 4 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.

#### robots.txt missing (root returns 404/none)

- Rule: `robots.txt_missing` · Category: Robots · Occurrences: 1

- [https://zencode.jp/](https://zencode.jp/) — robots.txt did not return a 200 at the site root — a healthy site should serve one (declare your sitemap and confirm the host serves root files)

#### No structured data detected

- Rule: `schema.none` · Category: Structured Data · Occurrences: 15

- [https://zencode.jp/](https://zencode.jp/)
- [https://zencode.jp/about.html](https://zencode.jp/about.html)
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html)
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html)
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html)
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html)
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html)
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html)
- [https://zencode.jp/index.html](https://zencode.jp/index.html)
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html)
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html)
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html)
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html)

#### Missing recommended security headers

- Rule: `security.missing_headers` · Category: Security · Occurrences: 15

- [https://zencode.jp/](https://zencode.jp/) — X-Content-Type-Options, HSTS, CSP
- [https://zencode.jp/about.html](https://zencode.jp/about.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/index.html](https://zencode.jp/index.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html) — X-Content-Type-Options, HSTS, CSP
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html) — HSTS, CSP, X-Content-Type-Options
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html) — HSTS, CSP, X-Content-Type-Options

#### Missing Twitter Card tag

- Rule: `twitter.missing` · Category: Social · Occurrences: 15

- [https://zencode.jp/](https://zencode.jp/)
- [https://zencode.jp/about.html](https://zencode.jp/about.html)
- [https://zencode.jp/cases.html](https://zencode.jp/cases.html)
- [https://zencode.jp/contact.html](https://zencode.jp/contact.html)
- [https://zencode.jp/experience/experience.html](https://zencode.jp/experience/experience.html)
- [https://zencode.jp/galaxy.html](https://zencode.jp/galaxy.html)
- [https://zencode.jp/gallery.html](https://zencode.jp/gallery.html)
- [https://zencode.jp/globe.html](https://zencode.jp/globe.html)
- [https://zencode.jp/index.html](https://zencode.jp/index.html)
- [https://zencode.jp/matrix.html](https://zencode.jp/matrix.html)
- [https://zencode.jp/pricing.html](https://zencode.jp/pricing.html)
- [https://zencode.jp/solutions.html](https://zencode.jp/solutions.html)
- [https://zencode.jp/techstack.html](https://zencode.jp/techstack.html)
- [https://zencode.jp/wormhole.html](https://zencode.jp/wormhole.html)
- [https://zencode.jp/zencode-demo.html](https://zencode.jp/zencode-demo.html)

## Checks & coverage

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

- ✗ Agent Readiness — 9 warning(s), 11 notice(s)
- ✓ AI Content — clean
- ✓ Amp — clean
- ✓ Budget — clean
- ✓ Cache — clean
- ✗ Canonical — 15 warning(s)
- ✗ Content — 10 warning(s), 4 notice(s)
- ✓ Crawlability — clean
- ✗ Duplicate — 4 warning(s), 2 notice(s)
- ✓ Geo — clean
- ✗ Headings — 5 warning(s)
- ✓ Hreflang — clean
- ✗ Images — 5 notice(s)
- ✓ Indexability — clean
- ✗ Links — 6 notice(s)
- ✗ Meta Description — 13 warning(s), 2 notice(s)
- ✓ Mobile — clean
- ✗ Performance — 15 warning(s), 5 notice(s)
- ✓ Rendering — clean
- ✗ Robots — 1 notice(s)
- ✗ Security — 15 notice(s)
- ✓ Sitemap — clean
- ✗ Social — 30 notice(s)
- ✗ Structured Data — 15 notice(s)
- ✓ Titles — clean
- ✓ URL — clean
- ✓ Video — clean

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

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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