dcrs.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.211.38 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.211.38 | 600s | domain-parking.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | hobbes.emi.dtu.dk → 130.225.79.89 |
| 🔶 Autoconfig | hobbes.emi.dtu.dk → 130.225.79.89 |
| www CNAME | hobbes.emi.dtu.dk (all on dtu.dk) → 130.225.79.89 (AS1835) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.dcrs.dk | hobbes.emi.dtu.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026091001 |
| 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 | Punktum dk A/S (direct) |
| Registered | 1997-10-02 |
| Expires | 2026-12-31 (75d) |
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 |
|---|---|---|---|
| 2026-10-11 22:04:57 | 1069ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 00:29:51 shown | 472ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 13:49:24 | 692ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 04:51:56 | 585ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 23:08:31 | 844ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 17:22:09 | 538ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 06:38:03 | 2500ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 07:39:40 | 24691ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 04:44:42 | 2299ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-13 07:54:09 | 657ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 07:30:13 | 552ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 07:21:37 | 952ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 22:07:21 | 931ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 01:27:56 | 485ms | 2 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 01:20:56 | 432ms | 2 NS 1 A 0 MX | 🔒 Secure |