certificering.dk is a .dk domain served by 2 nameservers (inet.dti.dk, inet2.dti.dk). It was registered on 24 November 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.54.37.110 is hosted by TDC Holding A/S (AS3292) in Denmark. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| inet.dti.dk | — | — | — |
| inet2.dti.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.54.37.110 | — | 110.0-127.37.54.87.in-addr.arpa www.dti.dk www.teknologisk.dk |
AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | — |
| www CNAME | certificering.teknologisk.dk (all on teknologisk.dk) → 87.54.37.110 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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 | 2013121801 |
| Primary NS (MNAME) | inet.dti.dk |
| Responsible (RNAME) | postmaster@dti.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | WEB SOLUTIONS A/S |
| Registered | 1997-11-24 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 17:46:41 | 344ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-09-27 09:33:13 | 430ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-25 22:38:40 | 1055ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-21 22:24:32 | 353ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-18 15:01:09 | 3978ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-06-16 20:10:04 shown | 487ms | 2 NS 1 A 0 MX | 🔓 Insecure |