ctlleasing.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. Mail is handled by mx3.it-hotellet.dk, mx4.it-hotellet.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 this 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 | 3600s | mx3.it-hotellet.dk | 91.189.203.249 | — | AS42638 Netvaerkssmeden |
| 10 | 3600s | mx4.it-hotellet.dk | 91.189.203.248 | — | AS42638 Netvaerkssmeden |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 10 | 443 | mail5.it-hotellet.dk |
| TXT Record |
|---|
| v=spf1 include:_spf.it-hotellet.dk -all |
| Policy | Record (ctlleasing.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.it-hotellet.dk -all |
| Policy | Record (_dmarc.ctlleasing.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject ; rua=mailto:abuse@it-hotellet.dk; ruf=mailto:abuse@it-hotellet.dk; aspf=r; |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Only www resolves (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 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 | 2026083101 |
| 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 |
|---|---|---|---|
| 2026-10-01 23:08:52 | 5551ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 23:07:47 | 4462ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 06:19:02 | 4597ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-25 17:59:40 | 779ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-21 09:51:47 | 4505ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-05 08:42:13 shown | 1625ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-07 08:17:03 | 6707ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-03 21:43:14 | 1952ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-20 10:39:02 | 1769ms | 2 NS 0 A 2 MX | ⚠️ Bogus |
| 2026-06-16 23:11:34 | 4426ms | 2 NS 0 A 2 MX | 🔒 Secure |