odensegymnasium.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 16 February 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.89.122 | 300s | — | AS13335 | — | — | — | — |
| 172.67.141.224 | 300s | — | AS13335 | — | — | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:8de0 | 300s | — | AS13335 | — | — | — | — |
| 2606:4700:3036::6815:597a | 300s | — | AS13335 | — | — | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.89.122,172.67.141.224 ech=AEX+DQBBpQAgACCsbWNfeN1u38eklqEoNkurw8Ny+y/YKE2tGXRIbb7MfAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8de0,2606:4700:3036::6815:597a |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (odensegymnasium.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.odensegymnasium.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:8259ab0d3a104e2182065d31a5c5cb3d@dmarc-reports.cloudflare.net; |
| www | 104.21.89.122 172.67.141.224 2606:4700:3032::6815:597a 2606:4700:3032::ac43:8de0 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network odensegymnasium.dk: 104.21.89.122 172.67.141.224 2606:4700:3032::6815:597a 2606:4700:3032::ac43:8de0 (AS13335) www.odensegymnasium.dk: 104.21.89.122 172.67.141.224 2606:4700:3032::6815:597a 2606:4700:3032::ac43:8de0 (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: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2407254090 |
| Primary NS (MNAME) | lucy.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 | 2015-02-16 |
| Expires | 2027-02-28 (125d) |
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 |
|---|---|---|---|
| 2026-10-23 22:56:41 | 478ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-19 03:02:10 | 1466ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-15 00:07:41 | 457ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-10-11 14:40:16 | 2473ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-09-25 11:47:54 | 581ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-31 16:35:15 | 477ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-17 03:36:23 | 8863ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-12 15:41:01 | 938ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-08-07 23:59:39 | 1689ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-07-16 22:03:38 | 1448ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-24 19:47:14 | 981ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-20 10:28:34 shown | 1882ms | 2 NS 2 A 0 MX | 🔒 Secure |
| 2026-06-17 22:00:17 | 1038ms | 2 NS 2 A 0 MX | 🔒 Secure |