oh.dk is a .dk domain served by 2 nameservers (ligia.ns.cloudflare.com, tosana.ns.cloudflare.com). It was registered on 25 June 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.on-site.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.on-site.dk | — | — | — |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (oh.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.oh.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; |
| www | 104.21.29.164 172.67.149.118 2606:4700:3031::ac43:9576 2606:4700:3032::6815:1da4 (AS13335) (address records, no CNAME) |
| www vs bare domain | Only www resolves oh.dk: no address (all like this)www.oh.dk: 104.21.29.164 172.67.149.118 2606:4700:3031::ac43:9576 2606:4700:3032::6815:1da4 (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2417477349 |
| Primary NS (MNAME) | ligia.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-06-25 |
| Expires | 2027-04-30 (191d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 18:18:12 shown | 2183ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-10-09 09:30:05 | 1946ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-20 19:14:24 | 548ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-03 10:54:06 | 1572ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-09-01 06:39:35 | 1091ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-26 03:27:50 | 10099ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-21 17:06:05 | 7476ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-08-17 11:02:04 | 1519ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-28 21:32:12 | 1518ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-17 22:01:10 | 1056ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-07-05 01:03:52 | 1216ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-26 02:55:43 | 1310ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-22 09:13:15 | 966ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 13:10:43 | 428ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-20 01:05:35 | 3938ms | 2 NS 0 A 1 MX | 🔒 Secure |
| 2026-06-17 12:02:57 | 712ms | 2 NS 0 A 1 MX | 🔒 Secure |