itbolig.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 1 October 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.137.130.243 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 94.137.130.243 | 600s | — | AS48854 | team.blue Denmark A/S | 94.137.128.0/20 | 🇩🇰 Denmark | Aalborg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _globalsign-domain-verification=AsW9ZC8SFYVNLGJX8yyz7U0TUoNdahDdIr0gdPghnw |
| 7lc8ztVedd6ZUNuHMYbb7SUEoyWw1Pc+t7jPuL68CPtBr2G6kusJ+n7pRpxBzs2EzvpzRiJuz7dkm3o7J+Hp8A== |
| 8qbjqkhu8855k4vdqfghuoml28 |
| apple-domain-verification=XwuImKJhU7erHwy3 |
| g1fcarhagm495cbc5i88i08v1u |
| gupnr6lqvuillfak38414e1rgi |
| k4utpg9ak5bn7ar8s0ejt26vul |
| MS=ms61798075 |
| qNqfhY9ycAM3bTSN2Lce4a/TsV7f+zOtMVeO/6f4vuPMXOwtNfEFSbr1Unmv7Lbre5m4xofKfehmsOKZHBXLpA== |
| v=spf1 include:_spf51450.spfprotect.com -all |
| Policy | Record (itbolig.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf51450.spfprotect.com -all |
| Policy | Record (_dmarc.itbolig.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:65a8e66b5dbe3@dmarc-dk.centerasecurity.com; |
| www | 94.137.130.243 (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 |
DNS lookups: 6/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081903 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2008-10-01 |
| Expires | 2027-10-31 (370d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 15:51:32 | 814ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-03 02:06:35 | 2627ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-30 01:45:09 | 639ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-25 02:46:20 | 1024ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-08 18:48:40 | 1536ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-01 03:07:32 | 908ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-24 23:30:56 | 8824ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-19 18:32:16 shown | 4607ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-25 17:35:08 | 9193ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-04 23:43:50 | 5588ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 08:52:48 | 1943ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-30 01:51:13 | 1012ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-25 10:37:12 | 4099ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 08:33:54 | 3595ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 17:49:55 | 924ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 04:38:13 | 1062ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 22:29:23 | 701ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 22:13:49 | 839ms | 2 NS 1 A 3 MX | 🔒 Secure |