Catalog / sakusen.dev
65

SEO audit for sakusen.dev

sakusen.dev

otherHugo

Health 65/100 (fair) · 9 pages crawled · generated 2026-08-26

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

Hi, I'm Stephen! This is where I share my security research and whatever else I'm working on.

9
pages crawled
9
indexable pages
0
errors
18
warnings
80
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Security 70 0 9 9
Content 77 0 7 17
Headings 93 0 2 0
Agent Readiness 100 0 0 1
Duplicate 100 0 0 4
Images 100 0 0 1
Links 100 0 0 5
Meta Description 100 0 0 5
Performance 100 0 0 19
Social 100 0 0 9
Structured Data 100 0 0 9
Titles 100 0 0 1
Findings

Warnings (3 rules)

warning Thin content (low word count)

Rule content.thin · Content · 7 occurrence(s)

warning Missing <h1>

Rule h1.missing · Headings · 2 occurrence(s)

warning Content-Type header doesn't match the actual content

Rule headers.content_type_mismatch · Security · 9 occurrence(s)

  • https://sakusen.dev/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/authors/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/categories/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/projects/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/projects/fishnet/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/security-research/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/security-research/?app=Lichess&sort=cvss — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/series/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".
  • https://sakusen.dev/tags/ — the Content-Type is "text/html" with no charset — the HTTP charset is authoritative and browsers otherwise guess the encoding, which can garble non-ASCII text (mojibake). Declare it explicitly: "text/html; charset=utf-8".

Notices (15 rules)

notice No llms.txt for AI agents

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

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

notice Low text-to-HTML ratio

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

notice Main text is hard to read (low Flesch Reading Ease)

Rule content.readability_poor · Content · 2 occurrence(s)

  • https://sakusen.dev/security-research/ — this page reads as difficult (Flesch Reading Ease 45, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.
  • https://sakusen.dev/security-research/?app=Lichess&sort=cvss — this page reads as difficult (Flesch Reading Ease 45, below 50) — long sentences and multi-syllable words make it hard to scan. Shorten sentences and prefer plainer words to widen your audience. Density can be legitimate for expert, technical or legal content, so judge it against who the page is for.

notice Duplicate meta description across pages

Rule duplicate.meta_desc · Duplicate · 4 occurrence(s)

  • https://sakusen.dev/authors/ — meta description shared by 4 pages: https://sakusen.dev/categories/, https://sakusen.dev/series/, https://sakusen.dev/tags/
  • https://sakusen.dev/categories/ — meta description shared by 4 pages: https://sakusen.dev/authors/, https://sakusen.dev/series/, https://sakusen.dev/tags/
  • https://sakusen.dev/series/ — meta description shared by 4 pages: https://sakusen.dev/authors/, https://sakusen.dev/categories/, https://sakusen.dev/tags/
  • https://sakusen.dev/tags/ — meta description shared by 4 pages: https://sakusen.dev/authors/, https://sakusen.dev/categories/, https://sakusen.dev/series/

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 1 occurrence(s)

  • https://sakusen.dev/ — the likely hero/LCP image (github.svg) 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 · 1 occurrence(s)

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

Rule links.single_inlink · Links · 5 occurrence(s)

  • https://sakusen.dev/authors/ — 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://sakusen.dev/categories/ — 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://sakusen.dev/security-research/?app=Lichess&sort=cvss — 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://sakusen.dev/series/ — 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://sakusen.dev/tags/ — 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 Legacy <meta name=keywords> tag present (Google ignores it)

Rule meta.keywords_present · Content · 9 occurrence(s)

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 5 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 9 occurrence(s)

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

Rule perf.no_etag · Performance · 9 occurrence(s)

  • https://sakusen.dev/ — 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://sakusen.dev/authors/ — 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://sakusen.dev/categories/ — 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://sakusen.dev/projects/ — 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://sakusen.dev/projects/fishnet/ — 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://sakusen.dev/security-research/ — 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://sakusen.dev/security-research/?app=Lichess&sort=cvss — 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://sakusen.dev/series/ — 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://sakusen.dev/tags/ — 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 · 9 occurrence(s)

  • https://sakusen.dev/ — 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://sakusen.dev/authors/ — 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://sakusen.dev/categories/ — 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://sakusen.dev/projects/ — 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://sakusen.dev/projects/fishnet/ — 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://sakusen.dev/security-research/ — 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://sakusen.dev/security-research/?app=Lichess&sort=cvss — 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://sakusen.dev/series/ — 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://sakusen.dev/tags/ — 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 No structured data detected

Rule schema.none · Structured Data · 9 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 9 occurrence(s)

notice Title is very short

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

Pages (showing 9 of 9)
URLStatusIndexableWordsIn-links
https://sakusen.dev/
sakusen.dev		 200 yes 31 9
https://sakusen.dev/projects/
Projects - sakusen.dev		 200 yes 30 9
https://sakusen.dev/security-research/
Security Research - sakusen.dev		 200 yes 1322 9
https://sakusen.dev/projects/fishnet/
Fishnet Stats - sakusen.dev		 200 yes 148 2
https://sakusen.dev/security-research/?app=Lichess&sort=cvss
Security Research - sakusen.dev		 200 yes 1322 1
https://sakusen.dev/authors/
Authors · sakusen.dev		 200 yes 15 1
https://sakusen.dev/categories/
Categories · sakusen.dev		 200 yes 15 1
https://sakusen.dev/series/
Series · sakusen.dev		 200 yes 15 1
https://sakusen.dev/tags/
Tags · sakusen.dev		 200 yes 15 1

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