t53.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 January 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.59.253.217 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.t53.dk, backup-mx.post.tele.dk. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.59.253.217 | 43200s | 87-59-253-217-cable.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.59.0.0/16 | 🇩🇰 Denmark | Kongens Lyngby |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.t53.dk | 87.59.253.217 | 87-59-253-217-cable.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| 20 | 43200s | backup-mx.post.tele.dk | — | — | — |
| www CNAME | t53.dk (all on t53.dk) → 87.59.253.217 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081201 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2012-01-03 |
| Expires | 2027-01-31 (98d) |
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).
| Domain | Registrar |
|---|---|
| pipkassen.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 23:07:17 | 1739ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-13 16:24:11 | 1093ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-01 00:53:55 | 414ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-24 17:23:36 | 572ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-12 17:03:28 | 719ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-13 00:04:16 shown | 676ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-27 06:47:17 | 13647ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-19 10:41:53 | 864ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-13 03:18:28 | 6850ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-04 13:29:06 | 3351ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-25 01:15:37 | 2474ms | 2 NS 1 A 2 MX | ⚠️ Bogus |
| 2026-06-21 19:47:34 | 1084ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 13:11:12 | 957ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 13:12:02 | 1964ms | 2 NS 1 A 2 MX | 🔒 Secure |