cerum.dk is a .dk domain served by 3 nameservers (ns1.hyp.net, ns2.hyp.net, ns3.hyp.net). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.63.248.52 is hosted by Domeneshop AS (AS12996) in Norway. Mail is handled by mail.cerum.no. The zone is DNSSEC-signed and validates, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.hyp.net | — | — | — |
| ns2.hyp.net | — | — | — |
| ns3.hyp.net | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 194.63.248.52 | — | bristol.domeneshop.no | AS12996 | Domeneshop AS | 194.63.248.0/21 | 🇳🇴 Norway | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.cerum.no | 92.62.39.56 | mail.cerum.no | AS44381 ITsjefen AS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:5b40:0:248::52 | — | — | AS12996 | Domeneshop AS | 2a01:5b40:0:0:0:0:0:0/37 | 🇳🇴 Norway | — |
| TXT Record |
|---|
| v=spf1 include:_spf.cerum.no -all |
| Policy | Record (cerum.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.cerum.no -all |
| Policy | Record (_dmarc.cerum.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 194.63.248.52 2a01:5b40:0:248::52 (AS12996) (address records, no CNAME) |
| www vs bare domain | Same network cerum.dk: 194.63.248.52 2a01:5b40:0:248::52 (AS12996) www.cerum.dk: 194.63.248.52 2a01:5b40:0:248::52 (AS12996) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 1781070723 |
| Primary NS (MNAME) | ns1.hyp.net |
| Responsible (RNAME) | hostmaster@domeneshop.no |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 16:46:11 | 681ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 06:09:32 | 1042ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-19 12:54:26 | 1846ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 06:14:32 | 6014ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-29 21:42:59 | 1511ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 21:56:17 | 1290ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-01 23:58:54 | 1367ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 20:11:03 shown | 622ms | 3 NS 1 A 1 MX | 🔒 Secure |