tre.dk is a .dk domain served by 5 nameservers (nordic1.dnsnode.net, ns.hi3gaccess.se, ns2.hi3gaccess.se and 2 more). It was registered on 29 March 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.251.200.7 is hosted by Hi3G Access AB (AS44034) in Sweden. Mail is handled by 3-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 80.251.200.7 | 1200s | — | AS44034 | Hi3G Access AB | 80.251.192.0/20 | 🇸🇪 Sweden | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:aa0:28:a000::1007 | 1200s | — | AS44034 | Hi3G Access AB | 2a02:aa0::/29 | 🇸🇪 Sweden | — |
| TXT Record |
|---|
| _globalsign-domain-verification=cRKJsdrgOVVlOK5IqZGnTqfXQmgkCnTqzwrWJZCuW3 |
| _globalsign-domain-verification=ooZyX5dwPlZr6MlRroUPrD3buoNbSRur5UcTfZhopl |
| _globalsign-domain-verification=WqaawjxkjWQrHPl63G07_AvEzFsNZe_2RFfL0Hs0th |
| MS=ms50317184 |
| T75N7A2LgfvCDezObrcB4b63vACNbdUzpxjF54MivW1BAab7NsA0UJgInGKe7Jy2K5KHKE5vYny9piOwP2joTA== |
| v=spf1 include:tre.se include:support.zendesk.com -all |
| Policy | Record (tre.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:tre.se include:support.zendesk.com -all |
| www | 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) (address records, no CNAME) |
| www vs bare domain | Same network tre.dk: 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) www.tre.dk: 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 10/10 · policy: -all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-384/SHA-384 | KngXGI0T9cyy3IztpzoyZO4YwVcgFDCEaLTRo08O… |
| KSK | ECDSA P-384/SHA-384 | bx6d/Ee0AwTqn24eiBoKSE3HTrT5NxmfalgDuZJU… |
| ZSK | ECDSA P-384/SHA-384 | CVY5b0JQ8gzEbPT+FB9264ccOaf7hD5J1MsAM1u5… |
| ZSK | ECDSA P-384/SHA-384 | vLbc/tjURcPwA3ZBWEXwNTi7Dut/2lTEM2K+HCES… |
| Field | Value |
|---|---|
| Serial | 2026083000 |
| Primary NS (MNAME) | ns.hi3gaccess.se |
| Responsible (RNAME) | hostmaster@tre.se |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CSC Digital Brand Service, Inc |
| Registered | 2000-03-29 |
| Expires | 2027-03-31 (165d) |
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 |
|---|---|---|---|
| 2026-10-16 08:23:01 | 3569ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-13 23:33:30 | 1102ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-12 22:45:02 | 980ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-11 22:26:00 | 1668ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-09 18:33:59 | 1329ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-08 16:45:03 | 1859ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 16:16:36 | 4038ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-05 12:42:21 | 1755ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 12:23:36 | 979ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-02 12:22:39 | 1546ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-01 21:25:41 | 3460ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 21:18:15 | 1269ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 23:49:16 | 2216ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 23:25:13 | 1185ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 23:12:12 | 1004ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-25 23:02:06 | 1102ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 21:51:29 | 1227ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-18 18:07:08 | 2119ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-16 21:57:18 | 2302ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 17:50:31 | 2278ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 12:47:33 | 2406ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 16:31:09 shown | 6510ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-31 08:45:10 | 2244ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-29 19:16:01 | 1914ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 19:22:44 | 2047ms | 5 NS 1 A 1 MX | 🔓 Insecure |