certifikat-center.dk is a .dk domain served by 2 nameservers (udns1.cscdns.net, udns2.cscdns.uk). It was registered on 21 January 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.88.185.62 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| udns1.cscdns.net | — | — | — |
| udns2.cscdns.uk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.88.185.62 | — | — | AS3292 | TDC Holding A/S | 193.88.0.0/15 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (certifikat-center.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.certifikat-center.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:nets_rua@riskiq.net; |
| www | 193.88.185.62 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2019102605 |
| Primary NS (MNAME) | udns1.cscdns.net |
| Responsible (RNAME) | premiumdns@support.neustar |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2000-01-21 |
| Expires | 2027-03-31 (156d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 01:51:06 | 615ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-25 19:29:51 | 542ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-27 02:43:33 | 2694ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-22 18:42:07 | 589ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-20 17:16:27 | 433ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-20 04:16:24 | 500ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:10:55 shown | 409ms | 2 NS 1 A 0 MX | 🔓 Insecure |