mathiasrb.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is DNSSEC-signed but currently fails validation, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| TXT Record |
|---|
| apple-domain=FXl6HmNMQtfb5pGH |
| v=spf1 include:icloud.com ~all |
| Policy | Record (mathiasrb.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:icloud.com ~all |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves mathiasrb.dk: no address www.mathiasrb.dk: no address |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 5/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'mathiasrb.dk/DS/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2023021602 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 04:26:22 | 834ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-02 18:53:08 | 475ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-02 10:44:00 | 2042ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 10:36:30 | 484ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 03:45:35 | 591ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-25 23:49:23 | 617ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-04 19:25:17 | 561ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-18 04:58:10 | 17322ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-27 08:23:59 | 741ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-24 09:24:18 shown | 809ms | 3 NS 0 A 2 MX | ⚠️ Bogus |
| 2026-06-18 03:42:57 | 1031ms | 3 NS 0 A 2 MX | 🔒 Secure |