Wikipedia.org Domain Trust Report
wikipedia.org has critical issues detected across one or more monitoring dimensions (Security Headers). Review the health breakdown below.
Registration & ownership
| Registrar | MarkMonitor Inc. |
| Registered | Jan 13, 2001 |
| Updated | Aug 12, 2026 |
| Expires | Jan 13, 2027 99d |
| Status | client delete prohibit. |
DNS records
| A | 103.102.166.224 |
| AAAA | 2001:df2:e500:ed1a::1 |
| MX | mx-in1001.wikimedia.org (pri 10)mx-in2001.wikimedia.org (pri 10) |
| NS | ns0.wikimedia.orgns1.wikimedia.orgns2.wikimedia.org |
| TXT | yandex-verification: 35c08d23099dc863v=spf1 include:_cidrs.wikimedia.org ~allgoogle-site-verification=AMHkgs-4ViEvIJf5znZle-BSE2EPNFqM1nDJGRyn2qk |
| CAA | letsencrypt.orgpki.goog |
Hosting & network
| IP address | 103.102.166.224 |
| IPv6 | 2001:df2:e500:ed1a::1 |
| Nameservers | ns0.wikimedia.orgns1.wikimedia.orgns2.wikimedia.org |
| Protocol | HTTPS HTTP/2 |
| IPv6 support | ENABLED |
SSL / TLS
Technology detected
30-day availability
Email authentication
Monitoring events
What we know about Wikipedia.org
Wikipedia.org has been registered for 25 years (since Jan 13, 2001), managed through MarkMonitor Inc., ranked #29 globally by Tranco, categorised as education & reference. Its current health score is 60/100 (grade D), with one or more critical issues detected across monitored dimensions. As an educational resource, its DNS availability, SSL validity, and lack of blacklist entries are fundamental trust signals for institutions and researchers citing it.
wikipedia.org's security posture: SSL certificate needs attention — only 28 days until expiry; security headers are largely missing; no blacklist entries found.
SPF is configured, restricting which servers can send email as this domain. DMARC policy is set to "reject" — spoofed emails are rejected.
wikipedia.org resolves to 103.102.166.224, IPv6 is enabled, DNS is managed through ns0.wikimedia.org and ns1.wikimedia.org (+1 more), email routed through 2 MX records.
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