Catalog / wikipedia.org
65

SEO audit for wikipedia.org

Thames Tunnel - Wikipedia

blog

Health 65/100 (fair) · 50 pages crawled · generated 2026-07-29

Download Markdown report (feed to ChatGPT / Claude / Cursor)
Screenshot of wikipedia.org
50
pages crawled
23
indexable pages
0
errors
792
warnings
305
notices
0
orphan pages
0
broken links
Category breakdown
CategoryScoreErrorsWarningsNotices
Budget 0 0 727 0
Agent Readiness 86 0 23 2
Meta Description 86 0 23 0
Images 91 0 15 24
AI Content 98 0 4 0
Cache 100 0 0 23
Canonical 100 0 0 3
Content 100 0 0 17
Crawlability 100 0 0 27
Headings 100 0 0 4
Links 100 0 0 16
Performance 100 0 0 89
Security 100 0 0 1
Social 100 0 0 46
Structured Data 100 0 0 14
URL 100 0 0 39
Findings

Warnings (5 rules)

warning Control has no accessible name

Rule agent.control_no_name · Agent Readiness · 23 occurrence(s)

warning Unfilled template or prompt-leak text

Rule ai.prompt_leak · AI Content · 4 occurrence(s)

  • https://en.wikipedia.org/wiki/Help:Contents — The page contains unfilled template or prompt-echo text — e.g. "[[ totd ]]". This usually means a generation template was published without being completed or cleaned up. Fill in or remove the placeholder so readers and crawlers don't see the scaffolding.
  • https://en.wikipedia.org/wiki/Wikipedia:Community_portal — The page contains unfilled template or prompt-echo text — e.g. "[[ copy edit ]]". This usually means a generation template was published without being completed or cleaned up. Fill in or remove the placeholder so readers and crawlers don't see the scaffolding.
  • https://en.wikipedia.org/wiki/Wikipedia:File_Upload_Wizard — The page contains unfilled template or prompt-echo text — e.g. "[[Keep local]]". This usually means a generation template was published without being completed or cleaned up. Fill in or remove the placeholder so readers and crawlers don't see the scaffolding.
  • https://en.wikipedia.org/wiki/Wikipedia:File_upload_wizard — The page contains unfilled template or prompt-echo text — e.g. "[[Keep local]]". This usually means a generation template was published without being completed or cleaned up. Fill in or remove the placeholder so readers and crawlers don't see the scaffolding.

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

Rule budget.disallow_linked · Budget · 727 occurrence(s)

  • https://en.wikipedia.org/w/index.php?title=Special:CiteThisPage&page=Thames_Tunnel&id=1358221062&wpFormIdentifier=titleform — internal links point to https://en.wikipedia.org/w/index.php?title=Special:CiteThisPage&page=Thames_Tunnel&id=1358221062&wpFormIdentifier=titleform, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=Thames+Tunnel — internal links point to https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=Thames+Tunnel, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Special:DownloadAsPdf&page=Thames_Tunnel&action=show-download-screen — internal links point to https://en.wikipedia.org/w/index.php?title=Special:DownloadAsPdf&page=Thames_Tunnel&action=show-download-screen, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FThames_Tunnel — internal links point to https://en.wikipedia.org/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FThames_Tunnel, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=Thames+Tunnel — internal links point to https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=Thames+Tunnel, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=1 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=1, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=2 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=2, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=3 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=3, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=4 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=4, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=5 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=5, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=6 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=6, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=7 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=7, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=8 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=8, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=history — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=history, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=info — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=info, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&oldid=1358221062 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&oldid=1358221062, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&printable=yes — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&printable=yes, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&useparsoid=0 — internal links point to https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&useparsoid=0, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/wiki/Special:Random — internal links point to https://en.wikipedia.org/wiki/Special:Random, 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://en.wikipedia.org/wiki/Thames_Tunnel, https://en.wikipedia.org/wiki/Wikipedia:Contents, https://en.wikipedia.org/wiki/Main_Page.
  • https://en.wikipedia.org/wiki/Special:RecentChanges — internal links point to https://en.wikipedia.org/wiki/Special:RecentChanges, 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://en.wikipedia.org/wiki/Thames_Tunnel, https://en.wikipedia.org/wiki/Wikipedia:Contents, https://en.wikipedia.org/wiki/Main_Page.
  • https://en.wikipedia.org/wiki/Special:RecentChangesLinked/Thames_Tunnel — internal links point to https://en.wikipedia.org/wiki/Special:RecentChangesLinked/Thames_Tunnel, 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://en.wikipedia.org/wiki/Thames_Tunnel.
  • https://en.wikipedia.org/wiki/Special:Search — internal links point to https://en.wikipedia.org/wiki/Special:Search, 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://en.wikipedia.org/wiki/Thames_Tunnel, https://en.wikipedia.org/wiki/Wikipedia:Contents, https://en.wikipedia.org/wiki/Main_Page.
  • https://en.wikipedia.org/wiki/Special:SpecialPages — internal links point to https://en.wikipedia.org/wiki/Special:SpecialPages, 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://en.wikipedia.org/wiki/Thames_Tunnel, https://en.wikipedia.org/wiki/Wikipedia:Contents, https://en.wikipedia.org/wiki/Main_Page.
  • https://en.wikipedia.org/wiki/Special:WhatLinksHere/Thames_Tunnel — internal links point to https://en.wikipedia.org/wiki/Special:WhatLinksHere/Thames_Tunnel, 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://en.wikipedia.org/wiki/Thames_Tunnel.

warning Images missing alt text

Rule images.missing_alt · Images · 15 occurrence(s)

warning Missing meta description

Rule meta_desc.missing · Meta Description · 23 occurrence(s)

Notices (23 rules)

notice Heading levels skip a level

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

notice No llms.txt for AI agents

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

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

Rule cache.not_cacheable · Cache · 23 occurrence(s)

notice Canonical points to a different URL

Rule canonical.non_self · Canonical · 3 occurrence(s)

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

Rule content.readability_poor · Content · 17 occurrence(s)

  • https://en.wikipedia.org/wiki/Banquet_in_the_Thames_Tunnel — this page reads as difficult (Flesch Reading Ease 44, 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://en.wikipedia.org/wiki/File:Banquet_in_the_Thames_Tunnel.png — 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://en.wikipedia.org/wiki/File:Thamestunnel.jpg — this page reads as difficult (Flesch Reading Ease 43, 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://en.wikipedia.org/wiki/Geographic_coordinate_system — 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://en.wikipedia.org/wiki/Help:Contents — this page reads as difficult (Flesch Reading Ease 30, 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://en.wikipedia.org/wiki/Help:Introduction — 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://en.wikipedia.org/wiki/Main_Page — this page reads as very difficult (Flesch Reading Ease 25, 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://en.wikipedia.org/wiki/Portal:Current_events — this page reads as very difficult (Flesch Reading Ease 22, 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://en.wikipedia.org/wiki/Rotherhithe — this page reads as difficult (Flesch Reading Ease 50, 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://en.wikipedia.org/wiki/Talk:Thames_Tunnel — this page reads as very difficult (Flesch Reading Ease 27, 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://en.wikipedia.org/wiki/Tunnels_underneath_the_River_Thames — this page reads as difficult (Flesch Reading Ease 43, 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://en.wikipedia.org/wiki/Wikipedia:About — this page reads as very difficult (Flesch Reading Ease 8, 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://en.wikipedia.org/wiki/Wikipedia:Community_portal — 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://en.wikipedia.org/wiki/Wikipedia:Contact_us — this page reads as difficult (Flesch Reading Ease 34, 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://en.wikipedia.org/wiki/Wikipedia:Contents — this page reads as very difficult (Flesch Reading Ease 9, 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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level/1 — this page reads as very difficult (Flesch Reading Ease 7, 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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level_5/People/Writers_and_journalists — 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.

notice Multiple <h1> elements

Rule h1.multiple · Headings · 4 occurrence(s)

notice Image alt text is very long (possible keyword stuffing)

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

notice Likely hero image lacks fetchpriority=high

Rule images.hero_no_fetchpriority · Performance · 23 occurrence(s)

  • https://en.wikipedia.org/wiki/Banquet_in_the_Thames_Tunnel — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/File:Banquet_in_the_Thames_Tunnel.png — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/File:Thamestunnel.jpg — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Geographic_coordinate_system — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/George_Jones_%28painter%29 — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Help:Contents — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Help:Introduction — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Main_Page — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Portal:Current_events — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/River_Thames — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Rotherhithe — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Talk:Thames_Tunnel — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Thames_Tunnel — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Tunnels_underneath_the_River_Thames — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wapping — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:About — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:Community_portal — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:Contact_us — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:Contents — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:File_Upload_Wizard — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:File_upload_wizard — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level/1 — the likely hero/LCP image (enwiki-25.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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level_5/People/Writers_and_journalists — the likely hero/LCP image (enwiki-25.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 · 23 occurrence(s)

notice Internal link has no anchor text / accessible name

Rule links.no_anchor_text · Links · 16 occurrence(s)

notice Missing Open Graph tags

Rule og.missing · Social · 23 occurrence(s)

notice Large DOM (over 1500 elements) slows rendering & interaction

Rule perf.dom_size_large · Performance · 13 occurrence(s)

  • https://en.wikipedia.org/wiki/Geographic_coordinate_system — the page has 2624 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Help:Contents — the page has 1820 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Main_Page — the page has 2343 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Portal:Current_events — the page has 4640 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/River_Thames — the page has 14271 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Rotherhithe — the page has 3521 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Thames_Tunnel — the page has 2450 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wapping — the page has 3297 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wikipedia:Community_portal — the page has 7090 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wikipedia:Contents — the page has 1508 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wikipedia:File_Upload_Wizard — the page has 1929 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wikipedia:File_upload_wizard — the page has 1927 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.
  • https://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level_5/People/Writers_and_journalists — the page has 12586 DOM elements (recommended maximum is around 1500) — a large DOM increases style-recalculation, layout and paint cost, hurting LCP and INP. Flatten deep nesting, paginate long lists/tables, and lazy-render off-screen elements.

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

Rule perf.images_legacy_format · Performance · 23 occurrence(s)

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

Rule perf.no_etag · Performance · 23 occurrence(s)

  • https://en.wikipedia.org/wiki/Banquet_in_the_Thames_Tunnel — 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://en.wikipedia.org/wiki/File:Banquet_in_the_Thames_Tunnel.png — 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://en.wikipedia.org/wiki/File:Thamestunnel.jpg — 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://en.wikipedia.org/wiki/Geographic_coordinate_system — 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://en.wikipedia.org/wiki/George_Jones_%28painter%29 — 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://en.wikipedia.org/wiki/Help:Contents — 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://en.wikipedia.org/wiki/Help:Introduction — 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://en.wikipedia.org/wiki/Main_Page — 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://en.wikipedia.org/wiki/Portal:Current_events — 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://en.wikipedia.org/wiki/River_Thames — 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://en.wikipedia.org/wiki/Rotherhithe — 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://en.wikipedia.org/wiki/Talk:Thames_Tunnel — 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://en.wikipedia.org/wiki/Thames_Tunnel — 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://en.wikipedia.org/wiki/Tunnels_underneath_the_River_Thames — 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://en.wikipedia.org/wiki/Wapping — 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://en.wikipedia.org/wiki/Wikipedia:About — 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://en.wikipedia.org/wiki/Wikipedia:Community_portal — 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://en.wikipedia.org/wiki/Wikipedia:Contact_us — 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://en.wikipedia.org/wiki/Wikipedia:Contents — 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://en.wikipedia.org/wiki/Wikipedia:File_Upload_Wizard — 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://en.wikipedia.org/wiki/Wikipedia:File_upload_wizard — 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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level/1 — 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://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level_5/People/Writers_and_journalists — 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 · 1 occurrence(s)

  • https://en.wikipedia.org/wiki/File:Thamestunnel.jpg — 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 Slow server response

Rule perf.slow_response · Performance · 6 occurrence(s)

notice Blocked by robots.txt

Rule robots.blocked · Crawlability · 27 occurrence(s)

notice Article schema missing recommended properties (Top Stories / image carousel)

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

  • https://en.wikipedia.org/wiki/Tunnels_underneath_the_River_Thames — Article structured data is missing recommended property (image) — these feed Top Stories and image-carousel eligibility. Google defines no required Article properties, so this is advisory: add author, headline, image and datePublished where they apply.

notice No structured data detected

Rule schema.none · Structured Data · 13 occurrence(s)

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

Rule security.unsafe_cross_origin_links · Security · 1 occurrence(s)

notice Missing Twitter Card tag

Rule twitter.missing · Social · 23 occurrence(s)

notice Underscores in URL path (prefer hyphens)

Rule url.underscores · URL · 16 occurrence(s)

notice Uppercase letters in URL path

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

Pages (showing 50 of 50)
URLStatusIndexableWordsIn-links
https://en.wikipedia.org/wiki/Help:Contents
Help:Contents - Wikipedia		 200 yes 1597 23
https://en.wikipedia.org/wiki/Help:Introduction
Help:Introduction - Wikipedia		 200 yes 560 23
https://en.wikipedia.org/wiki/Main_Page
Wikipedia, the free encyclopedia		 200 yes 1999 23
https://en.wikipedia.org/wiki/Portal:Current_events
Portal:Current events - Wikipedia		 200 yes 6835 23
https://en.wikipedia.org/wiki/Wikipedia:About
Wikipedia:About - Wikipedia		 200 yes 1177 23
https://en.wikipedia.org/wiki/Wikipedia:Community_portal
Wikipedia:Community portal - Wikipedia		 200 yes 7702 23
https://en.wikipedia.org/wiki/Wikipedia:Contact_us
Wikipedia:Contact us - Wikipedia		 200 yes 620 23
https://en.wikipedia.org/wiki/Wikipedia:Contents
Wikipedia:Contents - Wikipedia		 200 yes 1049 23
https://en.wikipedia.org/wiki/Wikipedia:File_Upload_Wizard
Wikipedia:File upload wizard - Wikipedia		 200 yes 5574 23
https://en.wikipedia.org/wiki/Wikipedia:File_upload_wizard
Wikipedia:File upload wizard - Wikipedia		 200 yes 5568 23
https://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level/1
Wikipedia:Vital articles/Level 1 - Wikipedia		 200 yes 694 2
https://en.wikipedia.org/wiki/Thames_Tunnel
Thames Tunnel - Wikipedia		 200 yes 5483 9
https://en.wikipedia.org/wiki/Rotherhithe
Rotherhithe - Wikipedia		 200 yes 5609 6
https://en.wikipedia.org/wiki/Wapping
Wapping - Wikipedia		 200 yes 6072 6
https://en.wikipedia.org/wiki/River_Thames
River Thames - Wikipedia		 200 yes 21895 5
https://en.wikipedia.org/wiki/Geographic_coordinate_system
Geographic coordinate system - Wikipedia		 200 yes 3754 4
https://en.wikipedia.org/wiki/Banquet_in_the_Thames_Tunnel
Banquet in the Thames Tunnel - Wikipedia		 200 yes 573 4
https://en.wikipedia.org/wiki/File:Banquet_in_the_Thames_Tunnel.png
File:Banquet in the Thames Tunnel.png - Wikipedia		 200 yes 456 4
https://en.wikipedia.org/wiki/George_Jones_%28painter%29
George Jones (painter) - Wikipedia		 200 yes 1818 4
https://en.wikipedia.org/wiki/Wikipedia:Vital_articles/Level_5/People/Writers_and_journalists
Wikipedia:Vital articles/Level 5/People/Writers and journalists - Wikipedia		 200 yes 7678 2
https://en.wikipedia.org/wiki/File:Thamestunnel.jpg
File:Thamestunnel.jpg - Wikipedia		 200 yes 899 2
https://en.wikipedia.org/wiki/Talk:Thames_Tunnel
Talk:Thames Tunnel - Wikipedia		 200 yes 903 2
https://en.wikipedia.org/wiki/Tunnels_underneath_the_River_Thames
Tunnels underneath the River Thames - Wikipedia		 200 yes 1654 2
https://en.wikipedia.org/w/index.php?title=ChAdOx1_BDBV_vaccine&action=edit&redlink=1 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Help:Introduction/feedback&action=edit&section=new&editintro=Template:Feedback_editintro/Help:Introduction&preload=Template:Feedback_preload/Help:Introduction&preloadtitle=Feedback+from+%5B%5BUser%3A%7B%7Bsubst%3AREVISIONUSER%7D%7D%7C%7B%7Bsubst%3AREVISIONUSER%7D%7D%5D%5D+%28%7B%7Bsubst%3A%23time%3Aj+F+Y%7D%7D%29 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Portal:Current_events/2026_July_17&action=edit&editintro=Portal:Current_events/Edit_instructions 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:CiteThisPage&page=Thames_Tunnel&id=1358221062&wpFormIdentifier=titleform 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:CreateAccount&returnto=Thames+Tunnel 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:DownloadAsPdf&page=Thames_Tunnel&action=show-download-screen 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:MyTalk&action=edit&section=new&preload=Help:Contents/helpmepreload&preloadtitle=Help+me%21 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FThames_Tunnel 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=Thames+Tunnel 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Special:UserLogin&returnto=Wikipedia%3AFile+Upload+Wizard&returntoquery=withJS%3DMediaWiki%253AFileUploadWizard.js 0 no 0 2
https://en.wikipedia.org/w/index.php?title=Template:Meetup/July_2026&action=edit&preview=yes 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=edit&section=1 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=history 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&action=info 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&mobileaction=toggle_view_mobile 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&oldid=1358221062 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&printable=yes 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Thames_Tunnel&useparsoid=0 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Wikipedia:EXPLORE&redirect=no 0 no 0 1
https://en.wikipedia.org/w/index.php?title=Wikipedia:File_upload_wizard&withJS=MediaWiki:FileUploadWizard.js&withCSS=MediaWiki:FileUploadWizard.css 0 no 0 2
https://en.wikipedia.org/wiki/Special:Random 0 no 0 23
https://en.wikipedia.org/wiki/Special:RecentChanges 0 no 0 23
https://en.wikipedia.org/wiki/Special:RecentChangesLinked/Thames_Tunnel 0 no 0 1
https://en.wikipedia.org/wiki/Special:Search 0 no 0 23
https://en.wikipedia.org/wiki/Special:SpecialPages 0 no 0 23
https://en.wikipedia.org/wiki/Special:WhatLinksHere/Thames_Tunnel 0 no 0 1

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