studieboligsyd.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.106.21 is hosted by team.blue Denmark A/S (AS48854) 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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 94.231.106.21 | 3600s | linux201.curanet.dk | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| www | 94.231.106.21 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| 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 | 2026101101 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 13:36:06 shown | 881ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-15 08:20:17 | 814ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 20:01:38 | 629ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 04:47:50 | 559ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-12 13:18:34 | 675ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 15:23:06 | 627ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 19:35:21 | 982ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 07:45:40 | 733ms | 2 NS 1 A 0 MX | 🔒 Secure |