What technology does wikipedia.org use?

We did not detect any specific technologies for wikipedia.org in the latest scan.

Is wikipedia.org secure (HTTPS)?

Yes. wikipedia.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 4, 2026.

Who hosts wikipedia.org?

wikipedia.org is hosted on WIKIMEDIA - Wikimedia Foundation Inc., US.

What is wikipedia.org's SEO score?

wikipedia.org scored 80/100 for SEO in the latest analysis (great).

What is wikipedia.org's overall website score?

wikipedia.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

wikipedia.org

Wikipedia

Last scanned Jul 15, 2026, 11:52 AM

Overall score

Great

Top issues to fix

7 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
2 cookies without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+1 more issue — details in the sections below.

Summary

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation. This website is hosted on WIKIMEDIA - Wikimedia Foundation Inc., US. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

SEO

3 issue(s) found

100

Performance

161 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Meta tags

Title: Wikipedia
Description: Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Canonical
Language: en
Charset: utf-8
Viewport: initial-scale=1,user-scalable=yes
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: WIKIMEDIA - Wikimedia Foundation Inc., US
CDN provider: —
IP address: 103.102.166.224
ASN: AS14907 (WIKIMEDIA - Wikimedia Foundation Inc., US)

DNS records

Type	Value
A	103.102.166.224
AAAA	2001:df2:e500:ed1a::1
MX	—
TXT	—
NS	—
CAA	—
CNAME	dyna.wikimedia.org
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: *.wikipedia.org
Valid from: Jun 6, 2026
Valid to: Sep 4, 2026
Days until expiry: 51
SAN domains: *.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

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 5 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 1

Links

0 internal · 365 external · 0 broken

Images

1 total · 0 missing alt

Scripts / Styles

4 scripts · 0 stylesheets

JS / CSS size

25.8 KB · 59.0 KB

Page size

118 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 458
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing canonical link
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://wikipedia.org
Final URL: https://www.wikipedia.org/
HTTP status: 200
HTTP version: HTTP/2
Response time: 159 ms
HTML size: 118 KB
Redirect chain: https://wikipedia.org → https://www.wikipedia.org/

Same hosting provider

wikimedia.org

Wikimedia

WIKIMEDIA - Wikimedia Foundation Inc., US

Frequently asked questions

What technology does wikipedia.org use?: We did not detect any specific technologies for wikipedia.org in the latest scan.
Is wikipedia.org secure (HTTPS)?: Yes. wikipedia.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 4, 2026.
Who hosts wikipedia.org?: wikipedia.org is hosted on WIKIMEDIA - Wikimedia Foundation Inc., US.
What is wikipedia.org's SEO score?: wikipedia.org scored 80/100 for SEO in the latest analysis (great).
What is wikipedia.org's overall website score?: wikipedia.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.