sanderumhus.dk is a .dk domain served by 2 nameservers (kristin.ns.cloudflare.com, nitin.ns.cloudflare.com). It was registered on 15 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.175 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed but currently fails validation, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.93.175 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.213.71 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.213.71 |
| 🔶 Autoconfig | 104.21.93.175 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:5daf | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:d547 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.93.175,172.67.213.71 ech=AEX+DQBBLQAgACCrQdpb2a3PDJIlRena30f6iXhyGTgVnWbVR/N7meI8EgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5daf,2606:4700:3034::ac43:d547 |
| TXT Record |
|---|
| v=spf1 include:_u.sanderumhus.dk._spf.smart.ondmarc.com -all |
| Policy | Record (sanderumhus.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_u.sanderumhus.dk._spf.smart.ondmarc.com -all |
| Policy | Record (_dmarc.sanderumhus.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:7a2eb496@inbox.ondmarc.com; ruf=mailto:7a2eb496@inbox.ondmarc.com; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600 |
| www | 104.21.93.175 172.67.213.71 2606:4700:3031::6815:5daf 2606:4700:3035::ac43:d547 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network sanderumhus.dk: 104.21.93.175 172.67.213.71 2606:4700:3031::6815:5daf 2606:4700:3035::ac43:d547 (AS13335) www.sanderumhus.dk: 104.21.93.175 172.67.213.71 2606:4700:3031::6815:5daf 2606:4700:3035::ac43:d547 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'sanderumhus.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2406569572 |
| Primary NS (MNAME) | kristin.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2023-05-15 |
| Expires | 2027-05-14 (208d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:36:08 | 1115ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-10-07 10:23:12 | 904ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-30 09:15:08 | 569ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-25 21:53:34 | 600ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-23 23:39:50 | 656ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-17 04:01:18 | 590ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-09-11 13:13:06 | 1327ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-30 01:02:32 | 1734ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-27 01:50:39 | 586ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-26 00:46:46 | 3069ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-24 19:30:15 | 642ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-08-09 14:43:05 | 879ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-27 12:53:24 | 1595ms | 2 NS 2 A 0 MX | 🔓 Insecure |
| 2026-06-17 19:52:06 shown | 927ms | 2 NS 2 A 0 MX | ⚠️ Bogus |