Catalog / idunnodev.com
79

SEO audit for idunnodev.com

iDunno Dev Portfolio Site

portfolio

Health 79/100 (good) · 50 pages crawled · generated 2026-08-26

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

Idunno Dev Games and projects from me

Screenshot of idunnodev.com
50
pages crawled
26
indexable pages
0
errors
84
warnings
340
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Agent Readiness 84 0 26 27
Images 85 0 25 25
Meta Description 86 0 24 2
Content 95 0 9 14
Cache 100 0 0 26
Duplicate 100 0 0 2
Headings 100 0 0 21
Links 100 0 0 3
Performance 100 0 0 105
Robots 100 0 0 1
Security 100 0 0 26
Social 100 0 0 24
Structured Data 100 0 0 26
URL 100 0 0 38
Findings

Warnings (4 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 26 occurrence(s)

warning Thin content (low word count)

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

warning Images missing alt text

Rule images.missing_alt · Images · 25 occurrence(s)

warning Missing meta description

Rule meta_desc.missing · Meta Description · 24 occurrence(s)

Notices (21 rules)

notice Heading levels skip a level

Rule agent.heading_skip · Agent Readiness · 26 occurrence(s)

notice No llms.txt for AI agents

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

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

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

Rule cache.not_cacheable · Cache · 26 occurrence(s)

notice Low text-to-HTML ratio

Rule content.low_ratio · Content · 1 occurrence(s)

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

Rule content.readability_poor · Content · 13 occurrence(s)

  • https://idunnodev.com/ — this page reads as difficult (Flesch Reading Ease 41, 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://idunnodev.com/games — this page reads as very difficult (Flesch Reading Ease 6, 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://idunnodev.com/games/dx11-game-engine — this page reads as difficult (Flesch Reading Ease 39, 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://idunnodev.com/history — this page reads as very difficult (Flesch Reading Ease 24, 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://idunnodev.com/history/assorted-delphi-programs — this page reads as difficult (Flesch Reading Ease 36, 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://idunnodev.com/history/assorted-pascal-programs — this page reads as difficult (Flesch Reading Ease 48, 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://idunnodev.com/history/wordsearch-creator — this page reads as difficult (Flesch Reading Ease 42, 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://idunnodev.com/projects — this page reads as very difficult (Flesch Reading Ease 4, 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://idunnodev.com/projects/3d-raster-engine — this page reads as difficult (Flesch Reading Ease 40, 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://idunnodev.com/projects/asm-graphics-example — this page reads as difficult (Flesch Reading Ease 49, 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://idunnodev.com/projects/bespoke-php-cms — this page reads as difficult (Flesch Reading Ease 42, 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://idunnodev.com/projects/smtp-simulation — this page reads as difficult (Flesch Reading Ease 47, 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://idunnodev.com/projects/xv6-example — this page reads as difficult (Flesch Reading Ease 36, 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 · 2 occurrence(s)

notice Multiple <h1> elements

Rule h1.multiple · Headings · 21 occurrence(s)

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 25 occurrence(s)

  • https://idunnodev.com/ — the likely hero/LCP image (unreal.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.
  • https://idunnodev.com/games — the likely hero/LCP image (unreal.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.
  • https://idunnodev.com/games/black-hole-escape — the likely hero/LCP image (630fd207e6b34-blackholebannersmall.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://idunnodev.com/games/dx11-game-engine — the likely hero/LCP image (632b725e3274f-cache_lovelycat_10_000000.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://idunnodev.com/games/intergalactic-intern — the likely hero/LCP image (64a3edb756fe6-intern_itchiobanner.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://idunnodev.com/games/plane-game — the likely hero/LCP image (unity.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.
  • https://idunnodev.com/games/serious-dodgeball — the likely hero/LCP image (649dfcb984f71-seriousdodgeball_itchiobanner.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://idunnodev.com/games/stealth-typist — the likely hero/LCP image (630fea0eac372-ichiostealthcover.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://idunnodev.com/games/unity2d-physics-test — the likely hero/LCP image (unity.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.
  • https://idunnodev.com/history — the likely hero/LCP image (visualstudio.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.
  • https://idunnodev.com/history/ac-data-writer — the likely hero/LCP image (631f2b5b6e3f6-script-editor.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://idunnodev.com/history/assorted-delphi-programs — the likely hero/LCP image (631f817958491-delphi-1.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://idunnodev.com/history/assorted-pascal-programs — the likely hero/LCP image (631f95639f890-pascal-1.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://idunnodev.com/history/assorted-vb-apps — the likely hero/LCP image (64527a50430ac-image.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://idunnodev.com/history/google-game-thing — the likely hero/LCP image (visualstudio.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.
  • https://idunnodev.com/history/rc-site-scraper — the likely hero/LCP image (visualstudio.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.
  • https://idunnodev.com/history/wordsearch-creator — the likely hero/LCP image (6452761cd24bd-new2.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://idunnodev.com/projects — the likely hero/LCP image (c.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.
  • https://idunnodev.com/projects/3d-raster-engine — the likely hero/LCP image (cpp.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.
  • https://idunnodev.com/projects/asm-graphics-example — the likely hero/LCP image (63dbfb921a337-virtualboxvm_hzf2p8h5ys.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://idunnodev.com/projects/bespoke-php-cms — the likely hero/LCP image (64bfda22c72b6-chrome_9old70f1hc.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://idunnodev.com/projects/moving-company-crm — the likely hero/LCP image (php.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.
  • https://idunnodev.com/projects/rest-api-example — the likely hero/LCP image (631363db06bf6-restexamplesite.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://idunnodev.com/projects/smtp-simulation — the likely hero/LCP image (python.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.
  • https://idunnodev.com/projects/xv6-example — the likely hero/LCP image (64559f6b59c5f-image.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.

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

Rule images.missing_dimensions · Images · 25 occurrence(s)

notice Internal link has no anchor text / accessible name

Rule links.no_anchor_text · Links · 3 occurrence(s)

notice Meta description too short

Rule meta_desc.too_short · Meta Description · 2 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 24 occurrence(s)

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

Rule perf.images_legacy_format · Performance · 26 occurrence(s)

  • https://idunnodev.com/ — 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://idunnodev.com/games — 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://idunnodev.com/games/black-hole-escape — 2 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://idunnodev.com/games/dx11-game-engine — 2 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://idunnodev.com/games/intergalactic-intern — 11 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
  • https://idunnodev.com/games/plane-game — 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://idunnodev.com/games/serious-dodgeball — 10 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://idunnodev.com/games/stealth-typist — 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://idunnodev.com/games/unity2d-physics-test — 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://idunnodev.com/history — 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://idunnodev.com/history/ac-data-writer — 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://idunnodev.com/history/assorted-delphi-programs — 2 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://idunnodev.com/history/assorted-pascal-programs — 2 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://idunnodev.com/history/google-game-thing — 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://idunnodev.com/history/rc-site-scraper — 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://idunnodev.com/history/wordsearch-creator — 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://idunnodev.com/projects — 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://idunnodev.com/projects/3d-raster-engine — 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://idunnodev.com/projects/asm-graphics-example — 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://idunnodev.com/projects/bespoke-php-cms — 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://idunnodev.com/projects/moving-company-crm — 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://idunnodev.com/projects/rest-api-example — 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://idunnodev.com/projects/smtp-simulation — 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://idunnodev.com/projects/xv6-example — 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://idunnodev.com/radio — 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 Large HTML document

Rule perf.large_html · Performance · 2 occurrence(s)

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

Rule perf.no_etag · Performance · 26 occurrence(s)

  • https://idunnodev.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://idunnodev.com/games — 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://idunnodev.com/games/black-hole-escape — 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://idunnodev.com/games/dx11-game-engine — 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://idunnodev.com/games/intergalactic-intern — 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://idunnodev.com/games/plane-game — 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://idunnodev.com/games/serious-dodgeball — 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://idunnodev.com/games/stealth-typist — 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://idunnodev.com/games/unity2d-physics-test — 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://idunnodev.com/history — 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://idunnodev.com/history/ac-data-writer — 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://idunnodev.com/history/assorted-delphi-programs — 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://idunnodev.com/history/assorted-pascal-programs — 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://idunnodev.com/history/google-game-thing — 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://idunnodev.com/history/rc-site-scraper — 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://idunnodev.com/history/wordsearch-creator — 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://idunnodev.com/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://idunnodev.com/projects/3d-raster-engine — 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://idunnodev.com/projects/asm-graphics-example — 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://idunnodev.com/projects/bespoke-php-cms — 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://idunnodev.com/projects/moving-company-crm — 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://idunnodev.com/projects/rest-api-example — 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://idunnodev.com/projects/smtp-simulation — 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://idunnodev.com/projects/xv6-example — 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://idunnodev.com/radio — 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 · 26 occurrence(s)

  • https://idunnodev.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://idunnodev.com/games — 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://idunnodev.com/games/black-hole-escape — 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://idunnodev.com/games/dx11-game-engine — 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://idunnodev.com/games/intergalactic-intern — 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://idunnodev.com/games/plane-game — 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://idunnodev.com/games/serious-dodgeball — 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://idunnodev.com/games/stealth-typist — 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://idunnodev.com/games/unity2d-physics-test — 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://idunnodev.com/history — 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://idunnodev.com/history/ac-data-writer — 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://idunnodev.com/history/assorted-delphi-programs — 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://idunnodev.com/history/assorted-pascal-programs — 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://idunnodev.com/history/google-game-thing — 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://idunnodev.com/history/rc-site-scraper — 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://idunnodev.com/history/wordsearch-creator — 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://idunnodev.com/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://idunnodev.com/projects/3d-raster-engine — 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://idunnodev.com/projects/asm-graphics-example — 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://idunnodev.com/projects/bespoke-php-cms — 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://idunnodev.com/projects/moving-company-crm — 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://idunnodev.com/projects/rest-api-example — 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://idunnodev.com/projects/smtp-simulation — 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://idunnodev.com/projects/xv6-example — 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://idunnodev.com/radio — 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 robots.txt missing (root returns 404/none)

Rule robots.txt_missing · Robots · 1 occurrence(s)

  • https://idunnodev.com/ — 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)

notice No structured data detected

Rule schema.none · Structured Data · 26 occurrence(s)

notice Missing recommended security headers

Rule security.missing_headers · Security · 26 occurrence(s)

notice Underscores in URL path (prefer hyphens)

Rule url.underscores · URL · 23 occurrence(s)

notice Uppercase letters in URL path

Rule url.uppercase · URL · 15 occurrence(s)

Pages (showing 50 of 50)
URLStatusIndexableWordsIn-links
https://idunnodev.com/
iDunno Dev Portfolio Site		 200 yes 260 26
https://idunnodev.com/games
All Games portfolio entries - iDunno Dev		 200 yes 113 26
https://idunnodev.com/games/black-hole-escape
Black Hole Escape - iDunno Dev		 200 yes 214 26
https://idunnodev.com/games/dx11-game-engine
DX11 Game Engine - iDunno Dev		 200 yes 308 26
https://idunnodev.com/games/intergalactic-intern
Intergalactic Intern - iDunno Dev		 200 yes 1256 26
https://idunnodev.com/games/serious-dodgeball
Serious Dodgeball - iDunno Dev		 200 yes 1152 26
https://idunnodev.com/games/stealth-typist
Stealth Typist - iDunno Dev		 200 yes 305 26
https://idunnodev.com/games/unity2d-physics-test
Unity2D Physics Test - iDunno Dev		 200 yes 76 26
https://idunnodev.com/history
All History and Archived portfolio entries - iDunno Dev		 200 yes 118 26
https://idunnodev.com/history/ac-data-writer
AC Data Writer - iDunno Dev		 200 yes 381 26
https://idunnodev.com/history/google-game-thing
Google Game Thing - iDunno Dev		 200 yes 264 26
https://idunnodev.com/history/wordsearch-creator
Wordsearch Creator - iDunno Dev		 200 yes 162 26
https://idunnodev.com/projects
All Projects portfolio entries - iDunno Dev		 200 yes 116 26
https://idunnodev.com/projects/3d-raster-engine
3D Raster Engine - iDunno Dev		 200 yes 304 26
https://idunnodev.com/projects/bespoke-php-cms
Bespoke PHP CMS - iDunno Dev		 200 yes 458 26
https://idunnodev.com/projects/moving-company-crm
Moving Company CRM - iDunno Dev		 200 yes 497 26
https://idunnodev.com/projects/rest-api-example
REST API Example - iDunno Dev		 200 yes 342 26
https://idunnodev.com/projects/xv6-example
XV6 Operating System - iDunno Dev		 200 yes 226 26
https://idunnodev.com/projects/asm-graphics-example
ASM Graphics Example - iDunno Dev		 200 yes 336 2
https://idunnodev.com/games/plane-game
Plane Game - iDunno Dev		 200 yes 74 1
https://idunnodev.com/projects/smtp-simulation
SMTP Simulation - iDunno Dev		 200 yes 288 1
https://idunnodev.com/radio
Idunno Dev Games - Radio		 200 yes 66 1
https://idunnodev.com/history/assorted-delphi-programs
Assorted Delphi Programs - iDunno Dev		 200 yes 149 1
https://idunnodev.com/history/assorted-pascal-programs
Assorted Pascal Programs - iDunno Dev		 200 yes 255 1
https://idunnodev.com/history/assorted-vb-apps
Assorted VB/.net Apps - iDunno Dev		 200 yes 281 1
https://idunnodev.com/history/rc-site-scraper
RC Site Scraper - iDunno Dev		 200 yes 74 1
https://idunnodev.com/download/1db810f8-2590-4e03-a945-f6f122e9c839 200 no 0 1
https://idunnodev.com/site_images/631363db06bf6-restexamplesite.png 200 no 0 1
https://idunnodev.com/site_images/631365ea4fc0a-restexamplecodeA.png 200 no 0 1
https://idunnodev.com/site_images/6313723cefa3c-chart_6_5_2022_17_40.png 200 no 0 1
https://idunnodev.com/site_images/64559f6b59c5f-image.png 200 no 0 1
https://idunnodev.com/site_images/6455a0bf36cd5-VirtualBoxVM_i822eSxRWh.png 200 no 0 1
https://idunnodev.com/site_images/6455a0e2391a4-VirtualBoxVM_58Jmm0aipj.png 200 no 0 1
https://idunnodev.com/site_images/649dfcb984f71-seriousdodgeball_itchiobanner.jpg 200 no 0 1
https://idunnodev.com/site_images/649e0e6ad4002-UnrealEditor_BSmaKXMc3X.png 200 no 0 1
https://idunnodev.com/site_images/649e109d7acfa-UnrealEditor_1AoESQSPU8.png 200 no 0 1
https://idunnodev.com/site_images/649e15a3a24df-UnrealEditor_OC9RJiBQQX.png 200 no 0 1
https://idunnodev.com/site_images/64a3edb756fe6-intern_itchiobanner.png 200 no 0 1
https://idunnodev.com/site_images/64a402838dd5d-GIF%2025-02-2023%2017-32-11.gif 200 no 0 1
https://idunnodev.com/site_images/64a404288c3b5-UnrealEditor_IV2BnEawJv.png 200 no 0 1
https://idunnodev.com/site_images/64a404fc553d3-chrome_SGAtAgpyeL.png 200 no 0 1
https://idunnodev.com/site_images/64a4050f4a5d6-UnrealEditor_7BAAheG1hQ.png 200 no 0 1
https://idunnodev.com/site_images/64a4052ea2b9e-UnrealEditor_HaWEn81NDr.png 200 no 0 1
https://idunnodev.com/site_images/64a405e330995-UnrealEditor_yqfYaTzjax.png 200 no 0 1
https://idunnodev.com/site_images/64a4094574715-UnrealEditor_dWJwwb4ZD0.png 200 no 0 1
https://idunnodev.com/site_images/64a41ad8aefaa-20230531024334_1.jpg 200 no 0 1
https://idunnodev.com/site_images/64a41c73bd245-Poster.jpg 200 no 0 1
https://idunnodev.com/site_images/64bfda22c72b6-chrome_9olD70f1HC.png 200 no 0 1
https://idunnodev.com/site_images/64bfdc5088c33-image.png 200 no 0 1
https://idunnodev.com/site_images/64bfdf4ca60d5-image.png 200 no 0 1

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