ouc.dk is a .dk domain served by 3 nameservers (ns1.sdu.dk, ns2.sdu.dk, ns3.sdu.dk). It was registered on 3 June 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.225.156.23 is hosted by IDDQD-AS (AS1835) in Denmark. 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 |
|---|---|---|---|---|---|---|---|
| 130.225.156.23 | 3600s | — | AS1835 | IDDQD-AS | 130.225.0.0/16 | 🇩🇰 Denmark | — |
| www | 130.225.156.23 (AS1835) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| 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 | 2011042058 |
| Primary NS (MNAME) | ns1.sdu.dk |
| Responsible (RNAME) | dns@it-service.sdu.dk |
| Refresh | 14400s |
| Retry | 1440s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2003-06-03 |
| Expires | 2027-06-30 (253d) |
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 |
|---|---|---|---|
| 2026-10-19 04:51:03 | 4275ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-13 23:16:04 | 8227ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-12 20:16:41 | 4246ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-05 18:20:55 | 4280ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-10-04 18:17:38 | 17134ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-29 17:52:31 | 8262ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-28 04:02:42 | 16508ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-27 03:28:51 | 16389ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-26 03:24:50 | 16460ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-24 02:42:53 | 4396ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-22 12:58:47 | 16549ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-18 08:05:45 | 3372ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-11 06:07:45 | 16519ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-09-05 14:47:15 | 16328ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-30 23:31:46 | 17034ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-27 17:12:51 | 4526ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-26 02:00:49 | 16598ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-24 13:57:43 shown | 2470ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-22 04:55:15 | 7173ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-17 20:04:34 | 4437ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-15 01:56:10 | 4461ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-10 10:51:33 | 4446ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-08-07 17:12:49 | 5781ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-29 15:47:53 | 4392ms | 3 NS 1 A 0 MX | 🔒 Secure |
| 2026-07-27 03:44:18 | 4503ms | 3 NS 1 A 0 MX | 🔒 Secure |