Catalog / gammaaex.net
71

SEO audit for gammaaex.net

がんまネット

otherGatsby

Health 71/100 (fair) · 29 pages crawled · generated 2026-08-26

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Screenshot of gammaaex.net
29
pages crawled
10
indexable pages
0
errors
71
warnings
147
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Links 53 0 45 0
Canonical 90 0 10 0
Content 91 0 9 6
Budget 93 0 7 0
Agent Readiness 100 0 0 17
Crawlability 100 0 0 16
Duplicate 100 0 0 10
Headings 100 0 0 1
Images 100 0 0 11
Performance 100 0 0 24
Security 100 0 0 13
Sitemap 100 0 0 10
Structured Data 100 0 0 1
Titles 100 0 0 14
URL 100 0 0 24
Findings

Warnings (4 rules)

warning robots.txt-disallowed URL receives internal links (crawl-budget leak)

Rule budget.disallow_linked · Budget · 7 occurrence(s)

  • https://gammaaex.net/tags/blog — internal links point to https://gammaaex.net/tags/blog, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2019-02-18/1, https://gammaaex.net/posts/2018-11-06/1.
  • https://gammaaex.net/tags/docker — internal links point to https://gammaaex.net/tags/docker, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2018-09-27/1.
  • https://gammaaex.net/tags/git — internal links point to https://gammaaex.net/tags/git, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2018-09-28/1.
  • https://gammaaex.net/tags/infrastructure — internal links point to https://gammaaex.net/tags/infrastructure, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2019-02-18/1.
  • https://gammaaex.net/tags/oss — internal links point to https://gammaaex.net/tags/oss, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2018-11-06/1, https://gammaaex.net/posts/2018-11-04/1.
  • https://gammaaex.net/tags/programming — internal links point to https://gammaaex.net/tags/programming, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2019-02-18/1, https://gammaaex.net/posts/2018-11-06/1.
  • https://gammaaex.net/tags/shopping — internal links point to https://gammaaex.net/tags/shopping, which robots.txt disallows for Googlebot — Googlebot discovers the URL, checks robots, then rejects it without indexing, wasting crawl budget and losing the link equity. Remove the internal links, or use noindex instead of Disallow if the page should be fetchable. Linked from: https://gammaaex.net/blog, https://gammaaex.net/posts/2018-04-28/1.

warning Thin content (low word count)

Rule content.thin · Content · 9 occurrence(s)

warning Internal link points to a redirect

Rule links.redirect_target · Links · 45 occurrence(s)

Notices (22 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 10 occurrence(s)

notice No llms.txt for AI agents

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

  • https://gammaaex.net/ — no llms.txt found at the site root — add one so AI agents get a curated site summary

notice No main landmark for AI agents

Rule agent.no_main_landmark · Agent Readiness · 6 occurrence(s)

notice Low text-to-HTML ratio

Rule content.low_ratio · Content · 6 occurrence(s)

notice Duplicate meta description across pages

Rule duplicate.meta_desc · Duplicate · 10 occurrence(s)

notice Multiple <h1> elements

Rule h1.multiple · Headings · 1 occurrence(s)

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

Rule images.generic_filename · Images · 1 occurrence(s)

  • https://gammaaex.net/posts/2018-04-28/1 — 12 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.

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 10 occurrence(s)

  • https://gammaaex.net/ — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/about — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/blog — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-03-05/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-04-28/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-09-27/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-09-28/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-11-04/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2018-11-06/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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://gammaaex.net/posts/2019-02-18/1 — the likely hero/LCP image (wiomr1f5iypzwaaacv0rvh0zgf0ztpjcmvhdguamjaxos0wny0ymfqymdowmzoymsswmdowmkqbdeqaaaaldevydgrhdgu6bw9kawz5adiwmtktmdctmjbumja6mdm6mjermda6mddvrs1yaaaaaelftksuqmcc) 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 Images without width/height (layout shift / CLS)

Rule images.missing_dimensions · Images · 10 occurrence(s)

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

Rule perf.images_legacy_format · Performance · 1 occurrence(s)

  • https://gammaaex.net/posts/2018-04-28/1 — 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.

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

Rule perf.no_last_modified · Performance · 10 occurrence(s)

  • https://gammaaex.net/ — 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://gammaaex.net/about — 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://gammaaex.net/blog — 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://gammaaex.net/posts/2018-03-05/1 — 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://gammaaex.net/posts/2018-04-28/1 — 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://gammaaex.net/posts/2018-09-27/1 — 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://gammaaex.net/posts/2018-09-28/1 — 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://gammaaex.net/posts/2018-11-04/1 — 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://gammaaex.net/posts/2018-11-06/1 — 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://gammaaex.net/posts/2019-02-18/1 — 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 URL redirects to another URL

Rule redirect.single · Crawlability · 9 occurrence(s)

notice Blocked by robots.txt

Rule robots.blocked · Crawlability · 7 occurrence(s)

notice Deep page has no BreadcrumbList structured data

Rule schema.breadcrumb_missing · Structured Data · 1 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 10 occurrence(s)

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

Rule security.unsafe_cross_origin_links · Security · 3 occurrence(s)

  • https://gammaaex.net/about — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
  • https://gammaaex.net/posts/2018-04-28/1 — 2 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
  • https://gammaaex.net/posts/2019-02-18/1 — 1 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 · 10 occurrence(s)

notice Title tag is identical to the H1 (missed keyword variation)

Rule title.same_as_h1 · Titles · 9 occurrence(s)

notice Title is very short

Rule title.too_short · Titles · 5 occurrence(s)

Pages (showing 29 of 29)
URLStatusIndexableWordsIn-links
https://gammaaex.net/
がんまネット
200 yes 37 10
https://gammaaex.net/about
Who am I ?
200 yes 36 10
https://gammaaex.net/blog
My memory
200 yes 89 10
https://gammaaex.net/posts/2018-11-06/1
Rocket.Chatのおすすめ設定
200 yes 255 4
https://gammaaex.net/posts/2018-11-04/1
オンプレミス運用可能なSlackのOSSクローンをまとめてみた
200 yes 75 4
https://gammaaex.net/posts/2018-09-28/1
ブランチが消せない理由
200 yes 66 4
https://gammaaex.net/posts/2018-09-27/1
docker-composeのvolumesはマウント先を上書きする
200 yes 44 4
https://gammaaex.net/posts/2018-04-28/1
にゅーバック「Nomatic Backpack」
200 yes 63 4
https://gammaaex.net/posts/2019-02-18/1
VirtualBoxは80番や443番などのウェルノウンポートを握れない
200 yes 83 3
https://gammaaex.net/posts/2018-03-05/1
Hello World!
200 yes 23 2
https://gammaaex.net/static/18964260027f95640f7c83cec017e405/d8f93/IMG_2244.jpg 200 no 0 1
https://gammaaex.net/static/194b861be9e228061be8f09b57725270/d8f93/IMG_2253.jpg 200 no 0 1
https://gammaaex.net/static/1fbac4a77f307f52fa7d0e62d7c84763/d8f93/IMG_2243.jpg 200 no 0 1
https://gammaaex.net/static/2a9aef45e8fb0f4a1b69be4db0cd5e5b/d8f93/IMG_2242.jpg 200 no 0 1
https://gammaaex.net/static/338d037083ff2ba98126046903b3661b/2d31a/IMG_2250.jpg 200 no 0 1
https://gammaaex.net/static/38ba1d5f309ee2fbba7761c4c754de4a/d8f93/IMG_2246.jpg 200 no 0 1
https://gammaaex.net/static/41f6ed3230895df24c3c14cd1a68411a/2d31a/IMG_2249.jpg 200 no 0 1
https://gammaaex.net/static/44c2643e15b660594b2bbe244abcef7a/d8f93/IMG_2252.jpg 200 no 0 1
https://gammaaex.net/static/66ca895a28126d85a1e36a9ca9bae1ce/2d31a/IMG_2251.jpg 200 no 0 1
https://gammaaex.net/static/9c0bef99f39894bc1fa4963e974e3eac/2d31a/IMG_2248.jpg 200 no 0 1
https://gammaaex.net/static/c77749ab8966d26f3b06fe60f901df89/d8f93/IMG_2245.jpg 200 no 0 1
https://gammaaex.net/static/e808ba2fcb5e639ba6b4a0da4914bc84/d8f93/IMG_2247.jpg 200 no 0 1
https://gammaaex.net/tags/blog 0 no 0 8
https://gammaaex.net/tags/docker 0 no 0 2
https://gammaaex.net/tags/git 0 no 0 2
https://gammaaex.net/tags/infrastructure 0 no 0 2
https://gammaaex.net/tags/oss 0 no 0 3
https://gammaaex.net/tags/programming 0 no 0 6
https://gammaaex.net/tags/shopping 0 no 0 2

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