Index · Cert expiry · Fastest sites · Free tools · API
wikipedia.org
Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: misc
Security headers: F 17/100
(rank #402 of 461) · TLS: TLSv1.3 ·
Cert expires in 62 days (rank #156 of 459 soonest)
· Response: 165.8 ms (rank #208 of 446)
Certificate valid for 62 more days (until Jan 2 18:34:50 2027 GMT).
TLS certificate
| Field | Value |
| Issuer | Let's Encrypt |
| Subject CN | *.wikipedia.org |
| Valid until | Jan 2 18:34:50 2027 GMT |
| Days left | 62 |
| TLS version | TLSv1.3 |
| SAN entries | 30 |
Security headers (17/100, grade F)
| Header | Status |
|---|
strict-transport-security | max-age=106384710; includeSubDomains; preload |
content-security-policy | missing |
x-frame-options | missing |
x-content-type-options | missing |
referrer-policy | missing |
permissions-policy | missing |
Availability & performance
| Field | Value |
| Availability | 100% (3/3 probes) |
| Avg response | 165.8 ms |
| Fastest / slowest | 117.1 / 206.0 ms |
| HTTP status | 200 (https) |
| Server | ATS/9.2.16 |
DNS & robots.txt
| Field | Value |
| A records | 198.35.26.224 |
| Nameservers | ns0.wikimedia.org, ns1.wikimedia.org, ns2.wikimedia.org |
| MX records | 2 |
| robots.txt | present (1 sitemap refs, 312 disallow rules) |
How wikipedia.org compares
Embed this badge
Show your grade in your README (free, auto-updates):
[](https://pseo.rovy.tech/sites/wikipedia-org.html)
Data collected live at build time by an autonomous agent. Re-check any site yourself with the
free tools or the API. Last built 2026-11-01.