Generated: 2026-08-10T13:00:15-05:00
| Status | Check | Points | Details |
|---|---|---|---|
| OK | IPv4 (A) | 30/30 | 1 IPv4 address(es) detected. |
| OK | IPv6 (AAAA) | 10/10 | 1 IPv6 address(es) detected. |
| OK | Name server redundancy | 20/20 | 3 NS record(s); 2 or more required. |
| OK | SOA record | 10/10 | Authoritative zone record. |
| ERROR | DNSSEC chain | 0/15 | Both DS and DNSKEY are required. |
| OK | CAA policy | 5/5 | Certificate authority restriction. |
| OK | DNS propagation | 10/10 | Agreement between public resolvers. |
| OK | MX records | 20/20 | 1 MX record(s). |
| OK | SPF | 25/25 | SPF policy published. |
| OK | DMARC | 25/25 | DMARC policy published. |
| OK | DKIM | 20/20 | A DKIM selector was verified. |
| ERROR | MTA-STS | 0/5 | Mail transport policy. |
| ERROR | TLS-RPT | 0/5 | TLS reporting policy. |
| OK | Valid TLS certificate | 55/55 | 54 day(s) remaining. |
| OK | Certificate lifetime | 10/10 | Full points require at least 30 days remaining. |
| WARNING | HTTP security headers | 8/35 | 2 of 9 evaluated headers detected. |
| ERROR | PTR reverse DNS | 0/30 | PTR not detected. |
| WARNING | IPv4 diversity | 20/35 | Two or more IPv4 addresses receive full points. |
| OK | IPv6 connectivity | 35/35 | AAAA availability. |
| OK | DNS resolution | 40/40 | At least one address family must resolve. |
| OK | HTTP response | 40/40 | HTTP/1.1 200 OK |
| OK | HTTPS final URL | 20/20 | Final URL uses HTTPS. |
| Tipo | Values |
|---|---|
| A | 176.126.244.107 |
| AAAA | 2a00:1098:4ce::1 |
| CNAME | |
| MX | 10 maths-org.mail.protection.outlook.com. |
| TXT | "MS=ms54377933" "v=spf1 include:spf.mailjet.com include:_spf.cam.ac.uk include:spf.protection.outlook.com -all" "_u8fe7wzyzmbgvzwfo4cr36w4xifsg8h" |
| NS | authdns0.maths.cam.ac.uk. ns2.ic.ac.uk. authdns1.maths.cam.ac.uk. |
| SOA | authdns0.maths.cam.ac.uk. hostmaster.maths.cam.ac.uk. 2026051998 21600 3600 604800 172800 |
| CAA | 0 issue "letsencrypt.org" 0 issue "digicert.com" |
| DS | |
| DNSKEY | 256 3 13 9tCAkqj3V2lSgGuKTyOPxGtV0qAV2P9wkCpDBwc0AjUYHIVnbUVSU9Hy 4OraGkbyj5qLd0VBr6LxE04Q1knv+w== 257 3 13 EUtFYxQT2hgkeOqLmZcg+qMWEWKM2TwFt/TiR99yLqlcEhC23xthi2oe AIGC2PPZUrVYNQSUSkSDnqCRiD95UA== |
| RRSIG | SOA 13 2 172800 20260821134427 20260810124427 36613 maths.org. n/q9II8yj4t9l1ii+ulEKngs/xH2lTDEmSKStKn2xKy2dBeLK5nOQdVN 6kemayHHg1A0Tp9Tw/2wzHM5fjVRvA== NS 13 2 172800 20260820231250 20260809223508 36613 maths.org. 4q4kASOI8iK2FogcJk/ldP4eczsKJDP4sVML52/3kKKOC3Zts3u6aFDh IfcNDDN2QVfz4xYiXCl0gT8g3I63ug== AAAA 13 2 172800 20260820175016 20260809165247 36613 maths.org. ZXeZKjtWZZ/pPYpPKQxdkW5dYFp7WXusLsXNpPyizzO1nM4cxyrKG3tS 4ARyQ/5AtUU7T2sGt8ZnA2bICcffeQ== CAA 13 2 172800 20260820233326 20260809230415 36613 maths.org. fS3gR4/HB09JndPtBWHfp45BSo4mY3Zh2lGd7JuJoAyOcXdxAKi0lKKE 8Ypl1rNNRIzWp38lLN0JMlWpBFY7Uw== |
| NSEC | _dmarc.maths.org. A NS SOA MX TXT AAAA RRSIG NSEC DNSKEY CDS CDNSKEY CAA |
| NSEC3 | |
| SRV | |
| NAPTR | |
| TLSA | |
| SSHFP |