Catalog / nature-yamasakura.com

SEO audit for nature-yamasakura.com

やまざくら自然誌日記 | 旅する生物調査員の博物誌！「今在るもの」を記録し、不変の美・万物の理を探究する。

other

Health 66/100 (fair) · 28 pages crawled · generated 2026-08-26

Download Markdown report (feed to ChatGPT / Claude / Cursor)

旅する生物調査員の博物誌！「今在るもの」を記録し、不変の美・万物の理を探究する。

pages crawled

indexable pages

errors

warnings

243

notices

orphan pages

broken links

Category breakdown

Category	Score	Warnings	Notices
Content	73	25	19
Meta Description	81	18	1
Structured Data	93	7	15
Agent Readiness	100	0	1
Canonical	100	0	2
Links	100	0	12
Performance	100	0	85
Security	100	0	33
Sitemap	100	0	24
Social	100	0	21
Titles	100	0	1
URL	100	0	29

Findings

Warnings (3 rules)

warning Thin content (low word count)

Rule content.thin · Content · 25 occurrence(s)

warning Missing meta description

Rule meta_desc.missing · Meta Description · 18 occurrence(s)

warning BreadcrumbList present but structurally incomplete

Rule schema.breadcrumb_incomplete · Structured Data · 7 occurrence(s)

https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — a BreadcrumbList is present but structurally incomplete — missing required name. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.
https://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — a BreadcrumbList is present but structurally incomplete — missing required itemListElement. Give itemListElement at least 2 ListItems, each with a sequential integer position and a name, and an item URL on every entry except the last.

Notices (17 rules)

notice No llms.txt for AI agents

Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)

https://nature-yamasakura.com/ — no llms.txt found at the site root — add one so AI agents get a curated site summary

notice Canonical points to a different URL

Rule canonical.non_self · Canonical · 2 occurrence(s)

https://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/ — canonical=https://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/contact
https://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ — canonical=https://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/profile

notice Low text-to-HTML ratio

Rule content.low_ratio · Content · 19 occurrence(s)

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 24 occurrence(s)

https://nature-yamasakura.com/ — the likely hero/LCP image (0l6a8241-1-scaled.jpg) 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — the likely hero/LCP image (ナガレタゴガエル-ヒガシヒダサンショウウオ-1.jpg) 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — the likely hero/LCP image (メジロガモ×アカハジロの交雑種.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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — the likely hero/LCP image (湯ノ湖の冬鳥.jpg) 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — the likely hero/LCP image (中禅寺湖の冬鳥-1.jpg) 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — the likely hero/LCP image (見出しを追加-scaled.jpg) 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://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — the likely hero/LCP image (2.jpg) 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://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/category/bird-research-record/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/aythya-baeri/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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://nature-yamasakura.com/tag/aythya-nyroca/ — the likely hero/LCP image (gif;base64,r0lgodlhaqabaaaaach5baekaaealaaaaaabaaeaaaictaeaow==) 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.

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

Rule links.single_inlink · Links · 12 occurrence(s)

https://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ — 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://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — 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://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — 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://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — 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://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ — 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://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — 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://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — 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://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — 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://nature-yamasakura.com/tag/aythya-baeri/ — 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://nature-yamasakura.com/tag/aythya-nyroca/ — 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.

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 1 occurrence(s)

https://nature-yamasakura.com/ — 40 chars

notice Missing Open Graph tags

Rule og.missing · Social · 21 occurrence(s)

https://nature-yamasakura.com/ — og:image
https://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/ — og:description, og:image
https://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ — og:image
https://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — og:description, og:image
https://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — og:description, og:image
https://nature-yamasakura.com/category/bird-research-record/ — og:description, og:image
https://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — og:description, og:image
https://nature-yamasakura.com/pr1/ — og:image
https://nature-yamasakura.com/sitemap/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ — og:description, og:image
https://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — og:description, og:image
https://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — og:description, og:image
https://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — og:description, og:image
https://nature-yamasakura.com/tag/aythya-baeri/ — og:description, og:image
https://nature-yamasakura.com/tag/aythya-nyroca/ — og:description, og:image

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

Rule perf.images_legacy_format · Performance · 7 occurrence(s)

https://nature-yamasakura.com/ — 3 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — 1 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — 1 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — 1 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — 1 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — 1 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://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — 1 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.

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

Rule perf.no_etag · Performance · 27 occurrence(s)

https://nature-yamasakura.com/ — 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — 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://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/ — 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://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ — 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://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — 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://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — 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://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — 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://nature-yamasakura.com/category/bird-research-record/ — 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://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — 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://nature-yamasakura.com/pr1/ — 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://nature-yamasakura.com/sitemap/ — 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://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — 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://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — 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://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — 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://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — 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://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — 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://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — 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://nature-yamasakura.com/tag/aythya-baeri/ — 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://nature-yamasakura.com/tag/aythya-nyroca/ — 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.

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

Rule perf.no_last_modified · Performance · 27 occurrence(s)

https://nature-yamasakura.com/ — 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — 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://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — 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://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — 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://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/ — 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://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ — 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://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — 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://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — 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://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — 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://nature-yamasakura.com/category/bird-research-record/ — 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://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — 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://nature-yamasakura.com/pr1/ — 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://nature-yamasakura.com/sitemap/ — 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://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — 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://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — 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://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — 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://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — 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://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — 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://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — 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://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — 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://nature-yamasakura.com/tag/aythya-baeri/ — 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://nature-yamasakura.com/tag/aythya-nyroca/ — 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.

notice Deep page has no BreadcrumbList structured data

Rule schema.breadcrumb_missing · Structured Data · 15 occurrence(s)

https://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/category/bird-research-record/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/aythya-baeri/ — depth-2 page has structured data but no BreadcrumbList
https://nature-yamasakura.com/tag/aythya-nyroca/ — depth-2 page has structured data but no BreadcrumbList

notice Missing recommended security headers

Rule security.missing_headers · Security · 27 occurrence(s)

notice target=_blank link without rel=noopener (tab-napping)

Rule security.unsafe_cross_origin_links · Security · 6 occurrence(s)

https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
https://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — 10 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".

notice Indexable page not listed in sitemap

Rule sitemap.orphan_not_listed · Sitemap · 24 occurrence(s)

https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ — indexable but not in sitemap
https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ — indexable but not in sitemap
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ — indexable but not in sitemap
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ — indexable but not in sitemap
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ — indexable but not in sitemap
https://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — indexable but not in sitemap
https://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ — indexable but not in sitemap
https://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ — indexable but not in sitemap
https://nature-yamasakura.com/category/bird-research-record/ — indexable but not in sitemap
https://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ — indexable but not in sitemap
https://nature-yamasakura.com/pr1/ — indexable but not in sitemap
https://nature-yamasakura.com/sitemap/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%8F%E3%83%8A%E3%82%B4%E3%82%A4/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E3%83%AA%E3%83%A9%E3%83%83%E3%82%AF%E3%82%B9%E3%82%AC%E3%83%BC%E3%83%87%E3%83%B3/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/%E7%94%9F%E3%81%8D%E7%89%A9/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/aythya-baeri/ — indexable but not in sitemap
https://nature-yamasakura.com/tag/aythya-nyroca/ — indexable but not in sitemap

notice Title is very short

Rule title.too_short · Titles · 1 occurrence(s)

https://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ — 12 chars

notice Non-ASCII characters in URL path

Rule url.non_ascii · URL · 20 occurrence(s)

notice URL is very long

Rule url.too_long · URL · 9 occurrence(s)

Pages (showing 28 of 28)

URL	Status	Indexable	Words	In-links
https://nature-yamasakura.com/ やまざくら自然誌日記 \| 旅する生物調査員の博物誌！「今在るもの」を記録し、不変の美・万物の理を探究する。	200	yes	95	27
https://nature-yamasakura.com/%E3%81%8A%E5%95%8F%E3%81%84%E5%90%88%E3%82%8F%E3%81%9B/ お問い合わせ \| やまざくら自然誌日記	200	yes	27	27
https://nature-yamasakura.com/%E3%83%97%E3%83%AD%E3%83%95%E3%82%A3%E3%83%BC%E3%83%AB/ プロフィール \| やまざくら自然誌日記	200	yes	36	27
https://nature-yamasakura.com/pr1/ プライバシーポリシー \| やまざくら自然誌日記	200	yes	82	27
https://nature-yamasakura.com/sitemap/ サイトマップ \| やまざくら自然誌日記	200	yes	45	27
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B48%E6%9C%8823%E6%97%A5%E3%80%91%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2-%EF%BD%9E%E5%A5%84%E7%BE%8E%E5%A4%A7%E5%B3%B6%E5%8C%97%E9%83%A8%E3%83%BB%E3%83%AA/ 【2025年8月23日】ダイビング記録～奄美大島北部・リラックスガーデン＆ハナゴイで出会った生き物１１選～ \|	200	yes	330	9
https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2x%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD%E3%81%AE%E9%9B%91%E7%A8%AE%EF%BC%882025%E5%B9%B42/ 【観察記録】メジロガモ×アカハジロの雑種（2025年2月10日） \|	200	yes	88	8
https://nature-yamasakura.com/%E3%80%90%E8%A6%B3%E5%AF%9F%E8%A8%98%E9%8C%B2%E3%80%91%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB%E3%83%BB%E3%83%92/ 【観察記録】ナガレタゴガエル・タゴガエル・ヒガシヒダサンショウウオ（2025年2月11日＠関東某所） \|	200	yes	209	7
https://nature-yamasakura.com/%E7%9A%87%E5%B1%85%EF%BC%88%E6%A1%9C%E7%94%B0%E5%A3%95%EF%BC%89%E3%81%AE%E9%B3%A5%E9%A1%9E/ 皇居（桜田壕）の鳥類 \|	200	yes	185	5
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%881%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%EF%BC%A0%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E6%B9%AF%E3%83%8E%E6%B9%96/ 【2025年1月1日】探鳥記録＠奥日光・湯ノ湖 \|	200	yes	172	4
https://nature-yamasakura.com/%E3%80%902025%E5%B9%B41%E6%9C%882%E6%97%A5%E3%80%91%E6%8E%A2%E9%B3%A5%E8%A8%98%E9%8C%B2-%E5%A5%A5%E6%97%A5%E5%85%89%E3%83%BB%E4%B8%AD%E7%A6%85%E5%AF%BA%E6%B9%96%EF%BC%88%E6%A0%83%E6%9C%A8%E7%9C%8C/ 【2025年1月2日】探鳥記録 @奥日光・中禅寺湖（栃木県日光市中宮祠） \|	200	yes	191	4
https://nature-yamasakura.com/category/bird-research-record/ 探鳥記録 \| やまざくら自然誌日記	200	yes	61	6
https://nature-yamasakura.com/category/bird-research-record/sakuradabori-birds/ 皇居（桜田壕）の鳥類 \| やまざくら自然誌日記	200	yes	36	3
https://nature-yamasakura.com/category/%E4%B8%A1%E7%94%9F%E9%A1%9E%E3%83%BB%E7%88%AC%E8%99%AB%E9%A1%9E%E6%8E%A2%E7%B4%A2/ 両生類・爬虫類探索 \| やまざくら自然誌日記	200	yes	37	2
https://nature-yamasakura.com/category/%E3%83%80%E3%82%A4%E3%83%93%E3%83%B3%E3%82%B0%E8%A8%98%E9%8C%B2/ ダイビング記録 \| やまざくら自然誌日記	200	yes	33	2
https://nature-yamasakura.com/tag/%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ タゴガエル \| やまざくら自然誌日記	200	yes	37	1
https://nature-yamasakura.com/tag/%E3%83%8A%E3%82%AC%E3%83%AC%E3%82%BF%E3%82%B4%E3%82%AC%E3%82%A8%E3%83%AB/ ナガレタゴガエル \| やまざくら自然誌日記	200	yes	37	1
https://nature-yamasakura.com/tag/%E3%83%92%E3%82%AC%E3%82%B7%E3%83%92%E3%83%80%E3%82%B5%E3%83%B3%E3%82%B7%E3%83%A7%E3%82%A6%E3%82%A6%E3%82%AA/ ヒガシヒダサンショウウオ \| やまざくら自然誌日記	200	yes	37	1
https://nature-yamasakura.com/tag/%E3%82%A2%E3%82%AB%E3%83%8F%E3%82%B8%E3%83%AD/ アカハジロ \| やまざくら自然誌日記	200	yes	34	1
https://nature-yamasakura.com/tag/%E3%83%A1%E3%82%B8%E3%83%AD%E3%82%AC%E3%83%A2/ メジロガモ \| やまざくら自然誌日記	200	yes	34	1
https://nature-yamasakura.com/tag/aythya-baeri/ Aythya baeri \| やまざくら自然誌日記	200	yes	36	1
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https://nature-yamasakura.com/feed/	200	no	0	27

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