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SEO results for https://www.wikipedia.org/

60 SEO checks ran across on-page, technical, security, performance, mobile, and analytics.

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A
85
/100
Overall SEO Score
https://www.wikipedia.org/
Excellent — your site is well-optimized.
Audited May 15, 2026 at 4:49 am · 60 SEO checks ran
44Passed
16To Improve
0Must Fix
⚠

Priority Issues

5 to fix first

These have the highest impact on your score — fix these first for the biggest improvement.

MEDIUM On-Page SEO
Title Tag
Title is only 9 characters. Aim for 50–60 characters to maximize SERP display without truncation.
Use our Meta Tag Generator →
MEDIUM On-Page SEO
Internal vs External Links
0 internal, 374 external. Internal link ratio is low (0%). Consider linking more to your own content.
MEDIUM On-Page SEO
Canonical URL
No tag. Helps prevent duplicate content issues.
Rewrite URLs with our tool →
MEDIUM On-Page SEO
W3C HTML Validity
34 W3C HTML errors. Worth cleaning up — most are usually 3rd-party scripts or non-standard attributes.
MEDIUM Technical SEO
Viewport Meta Tag
Viewport tag present but missing width=device-width. Mobile rendering may be suboptimal.
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Category Scores

75
📱 Mobile
2 checks · 75/100
Screen Simulator Mobile PSI Browser Info
86
📝 On-Page SEO
18 checks · 86/100
Meta Tags Keyword Density AI Title AI Description
83
🔒 Security
9 checks · 83/100
Blacklist Lookup Malware Check Suspicious Domain Email Privacy
83
📊 Analytics
3 checks · 83/100
Google Index Google Cache Rank Checker Backlinks
88
🔧 Technical SEO
16 checks · 88/100
Robots.txt XML Sitemap Spider Simulator Redirect Checker
92
⚡ Performance
12 checks · 92/100
Page Speed Google PSI Page Size Broken Links

Brand & Visual

A live snapshot of how the site looks today.

Screenshot of www.wikipedia.org
www.wikipedia.org

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Brand color: #0000ff

Domain Identity & Registration

Public RDAP record for wikipedia.org

Registrar
MarkMonitor Inc.
Domain Age
25 years, 4 mo
Created
Jan 13, 2001
Expires
Jan 13, 2027 223 days left
Authoritative Nameservers
  • ns0.wikimedia.org
  • ns1.wikimedia.org
  • ns2.wikimedia.org
Registry Status Flags
client delete prohibited client transfer prohibited client update prohibited

Network & Hosting

Where the site lives — IPs, hosting provider, geographic location, and full DNS records.

IPv4
208.80.154.224
IPv6
2620::861:ed1a:0:0:0:1
Hosting Provider
—
CDN / WAF
Direct (no CDN detected)
Reverse DNS
text-lb.eqiad.wikimedia.org
Location
San Francisco, California, United States US
ISP
Wikimedia Foundation Inc.
ASN
AS14907 Wikimedia Foundation Inc.
DNS Records
A
  • 208.80.154.224
AAAA
  • 2620::861:ed1a:0:0:0:1
MX
  • 10 · mx-in1001.wikimedia.org
  • 10 · mx-in2001.wikimedia.org
NS
  • ns0.wikimedia.org
  • ns1.wikimedia.org
  • ns2.wikimedia.org
TXT
  • v=spf1 include:_cidrs.wikimedia.org ~all
  • google-site-verification=AMHkgs-4ViEvIJf5znZle-BSE2EPNFqM1nDJGRyn2qk
  • yandex-verification: 35c08d23099dc863
SOA
  • Primary: ns0.wikimedia.org
  • Email: hostmaster.wikimedia.org
  • Serial: 2026030520

SSL & Security

TLS certificate, HTTP security headers, and reputation checks.

Certificate Status
Valid 36 days left
Subject (CN)
*.wikipedia.org
Issuer
E7
Valid From → To
Apr 7, 2026 → Jul 6, 2026
Wildcard
Yes
Self-signed
No
41 Subject Alternative Names
  • *.m.mediawiki.org
  • *.m.wikibooks.org
  • *.m.wikidata.org
  • *.m.wikimedia.org
  • *.m.wikinews.org
  • *.m.wikipedia.org
  • *.m.wikiquote.org
  • *.m.wikisource.org
  • *.m.wikiversity.org
  • *.m.wikivoyage.org
  • *.m.wiktionary.org
  • *.mediawiki.org
  • *.planet.wikimedia.org
  • *.wikibooks.org
  • *.wikidata.org
  • *.wikifunctions.org
  • *.wikimedia.org
  • *.wikimediafoundation.org
  • *.wikinews.org
  • *.wikipedia.org
  • *.wikiquote.org
  • *.wikisource.org
  • *.wikiversity.org
  • *.wikivoyage.org
  • *.wiktionary.org
  • *.wmfusercontent.org
  • mediawiki.org
  • w.wiki
  • wikibooks.org
  • wikidata.org
  • wikifunctions.org
  • wikimedia.org
  • wikimediafoundation.org
  • wikinews.org
  • wikipedia.org
  • wikiquote.org
  • wikisource.org
  • wikiversity.org
  • wikivoyage.org
  • wiktionary.org
  • wmfusercontent.org

TLD Variants & Brand Protection

Same brand on other top-level domains. All eight checked TLDs are taken.

.com Unknown
wikipedia.com
.net Unknown
wikipedia.net
.org Audited
wikipedia.org
.co Unknown
wikipedia.co
.io Unknown
wikipedia.io
.ai Unknown
wikipedia.ai
.app Unknown
wikipedia.app
.dev Unknown
wikipedia.dev

Site History

When was this site first seen on the public web? One click to scan the Wayback Machine.

Deep Research Shelf

15 follow-up tools — every link stays on-site, pre-filled with this domain.

Tech Stack Detector WHOIS Lookup DNS Records IP Address Hosting Provider Class C / Same Subnet SSL Certificate HTTP Headers Domain Authority MozRank Backlinks Indexed Pages Blacklist Reputation Google Safe Browsing Wayback History

Detailed Breakdown

Key insights, stats, and content signals — organized by importance.

1Key InsightsHow your page looks & reads
🔍 Google SERP Preview
https://www.wikipedia.org/
Wikipedia
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.

Keep titles under 60 chars · descriptions 140–160 chars for best display.

🔧 Fix or dive deeper
AI Title Generator AI Description Generator Meta Tag Generator Meta Tags Analyzer
☀ Keyword Cloud
base (104) font (101) lang (46) none (52) size (119) text (72) align (45) block (43) color (445) focus (56) hover (76) width (171) active (64) banner (95) border (219) bottom (66) button (59) height (103) margin (66) search (47) shadow (89) subtle (63) content (57) display (66) padding (52) spacing (42) position (70) background (195) destructive (42) progressive (71)

Top body terms sized by frequency. These are what search engines consider your core topic.

🔧 Fix or dive deeper
Keyword Density Checker Keyword Suggestions Keyword Position Checker
2At-a-Glance StatsPrivacy · Presence
✉ Email Privacy
1 exposed
Scrapers can harvest these for spam. Use a contact form or obfuscate.
📰 Social Profiles
0 linked
No social profile links found. Add them for brand-signal SEO.
📦 Page Weight
30 KB
Total HTML transferred. Aim under 1 MB for fast first paint.
⚡ Response Time
200 ms
Time to first byte from origin server.
3Content & Link SignalsWhat crawlers see on the page

📷 Alt Attribute Issues

0missing
✓ Every image on the page has descriptive alt text. Great for accessibility and image-search SEO.
portal/wikipedia.org/assets/img/Wikipedia-logo-v2.png

🔗 In-Page Links

374total
0 internal
374 external
374 dofollow
0 nofollow
Show link details →
AnchorTypeFollow
English 7,180,000+ articles external Dofollow
日本語 1,501,000+ 記事 external Dofollow
Deutsch 3.120.000+ Artikel external Dofollow
Français 2 757 000+ articles external Dofollow
Русский 2 099 000+ статей external Dofollow
中文 1,534,000+ 条目 / 條目 external Dofollow
Español 2.111.000+ artículos external Dofollow
Italiano 1.968.000+ voci external Dofollow
Polski 1 694 000+ haseł external Dofollow
Português 1.171.000+ artigos external Dofollow
العربية external Dofollow
Deutsch external Dofollow
English external Dofollow
Español external Dofollow
فارسی external Dofollow
Français external Dofollow
Italiano external Dofollow
مصرى external Dofollow
Nederlands external Dofollow
日本語 external Dofollow
Polski external Dofollow
Português external Dofollow
Sinugboanong Binisaya external Dofollow
Svenska external Dofollow
Українська external Dofollow
Tiếng Việt external Dofollow
Winaray external Dofollow
中文 external Dofollow
Русский external Dofollow
Afrikaans external Dofollow

Showing first 30 of 80 links.

4Deep DiveClick to expand any row
📄 Heading Structure 1 H1 ✓ 5 H2 1 H3 ▾
1
<H1>
5
<H2>
1
<H3>
0
<H4>
0
<H5>
0
<H6>
H1 text: Wikipedia The Free Encyclopedia
🌐 Language Declared: en ▾
Declared (html lang)en

All Metrics

  • All (60)
  • ⚠ Issues (16)
  • Mobile
  • On-Page SEO
  • Security
  • Analytics
  • Technical SEO
  • Performance
Title Tag warn
Title is only 9 characters. Aim for 50–60 characters to maximize SERP display without truncation.
Use our Meta Tag Generator →
Internal vs External Links warn
0 internal, 374 external. Internal link ratio is low (0%). Consider linking more to your own content.
Canonical URL warn
No tag. Helps prevent duplicate content issues.
Rewrite URLs with our tool →
W3C HTML Validity warn
34 W3C HTML errors. Worth cleaning up — most are usually 3rd-party scripts or non-standard attributes.
Viewport Meta Tag warn
Viewport tag present but missing width=device-width. Mobile rendering may be suboptimal.
Open Graph Tags warn
1 required OG tags missing: og:url. Complete OG tags improve social share appearance.
Twitter Card warn
No Twitter Card tags. Twitter shares fall back to Open Graph or plain text.
Content Security Policy warn
No CSP header. Modern defense against XSS — add one via your server config.
X-Frame-Options / CSP frame-ancestors warn
No X-Frame-Options or CSP frame-ancestors. Page can be embedded in a malicious frame.
Server Header Disclosure warn
Server header reveals software and version: "ATS/9.2.13". Attackers use this to target known CVEs.
Mobile Viewport warn
Viewport missing width=device-width — mobile experience will be subpar.
Google Analytics warn
No Google Analytics detected. Without analytics you can't measure traffic or conversions.
Readability Proxy warn
Sentences are very short (~2 words). May indicate thin content or fragmented text.
Structured Data Richness warn
No schema types detected.
Inline <style> Tags warn
3 inline style blocks. A small amount can be fine (critical CSS), but keep it minimal.
Inline <script> Tags warn
2 inline scripts. A few are fine; externalize if you can for caching benefits.
Meta Description pass
Description present, 130 characters — within the sweet spot.
Meta Keywords pass
No meta keywords tag present — this is modern best practice. Google ignores this tag since 2009.
H1 Heading pass
Exactly one H1 on the page: "Wikipedia The Free Encyclopedia"
Heading Hierarchy pass
Logical heading structure: H1:1 H2:5 H3:1 H4:0 H5:0 H6:0.
Image Alt Text pass
All 1 images have alt text. Excellent for accessibility and SEO.
Follow / Nofollow pass
374 dofollow, 0 nofollow. Link equity flows through dofollow links to linked pages.
Language Attribute pass
Page declares lang="en".
Character Encoding pass
UTF-8 charset declared — correct modern default.
DOCTYPE pass
HTML5 DOCTYPE declared correctly.
Custom 404 Page pass
Missing URLs return a full 404 response (2,020 bytes). Visitors get proper feedback.
Text to HTML Ratio pass
Text/HTML ratio: 56.6% — healthy content-to-markup balance.
Total Link Count pass
374 links on page.
Author Meta pass
No author meta tag. Optional — relevant for blogs and news sites.
Robots Meta Tag pass
No restrictive robots meta — default is index,follow (good).
robots.txt pass
robots.txt is present at https://wikipedia.org/robots.txt.
XML Sitemap pass
Sitemap declared in robots.txt: https://en.wikipedia.org/w/rest.php/site/v1/sitemap/0.
Structured Data (Schema) pass
Structured data present — RDFa detected. Eligible for rich results.
AMP pass
Page is not AMP. This is fine — AMP is optional and declining in Google's ranking signals.
Favicon pass
Favicon declared: /static/apple-touch/wikipedia.png.
Hreflang pass
No hreflang tags. This is correct for single-language sites.
ads.txt pass
No ads.txt file. This is optional — add one only if you monetize via programmatic display ads.
Server IP / Location pass
Resolved to 208.80.154.224.
Server Location / Host pass
Hosting provider: Unknown (rDNS: text-lb.eqiad.wikimedia.org).
www / non-www canonical pass
Apex redirects to www. Single canonical hostname configured correctly.
Domain Age pass
Registered 2001-01-13 (25 year(s) old). Mature domain — Google trusts age modestly.
HTTPS pass
Page served over HTTPS. Good for SEO, privacy, and user trust.
HSTS pass
Strict-Transport-Security header present. Forces HTTPS on future visits.
Mixed Content pass
No mixed content — all resources loaded over HTTPS.
X-Powered-By Disclosure pass
No X-Powered-By header — good.
security.txt pass
security.txt file present — RFC 9116 standard for security contact info.
DNSBL / Spam Blocklist pass
IP is clean on the 5 major DNSBL zones spot-checked (Spamhaus, SpamCop, Barracuda, SORBS, PSBL).
HTTP Status pass
Server returned HTTP 200.
Response Time pass
Fast TTFB: 200ms. Well under Google's 800ms target.
Page Size pass
Page weight: 30 KB. Lightweight — good for mobile users on slow connections.
Compression pass
Gzip compression active. Consider upgrading to Brotli for ~15-20% smaller responses.
Browser Caching pass
Static asset https://wikipedia.org/static/apple-touch/wikipedia.png caches well: max-age=31536000.
HTTP Version pass
Serving over HTTP/2 — multiplexed and modern.
External Resources pass
0 CSS + 2 JS external files — reasonable.
Iframes pass
No iframes — keeps load time predictable.
Image Count pass
1 images.
Broken Link Check pass
Crawled 1 internal links — all returned a 2xx/3xx response.
Run full broken-links scan →
Flash Content pass
No Flash content — good, Flash has been discontinued since 2020.
Google Tag Manager pass
No GTM detected. Optional — only worth adding if you run many tracking pixels.
Facebook Pixel pass
No Facebook Pixel detected. Optional — only worth adding if you run Meta ads and need retargeting.
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About the Website SEO Checker

One audit, every signal that matters: meta tags, headings, alt-text coverage, link balance, HTTPS, security headers, page weight, response time, mobile viewport, structured data, social tags, and more. Each finding includes a fix you can act on — and links to the right free tool when one of ours can repair the issue.

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