ler.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 5.44.139.146 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx01.statens-it.dk, mx02.statens-it.dk and 6 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 |
|---|---|---|---|---|---|---|---|
| 5.44.139.146 | 43200s | netcompany.com | AS3292 | TDC Holding A/S | 5.44.136.0/21 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mx01.statens-it.dk | 194.182.109.217 | mx01.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx02.statens-it.dk | 194.182.109.218 | mx02.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx03.statens-it.dk | 194.182.109.219 | mx03.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx04.statens-it.dk | 194.182.109.220 | mx04.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx05.statens-it.dk | 194.182.109.221 | mx05.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx06.statens-it.dk | 194.182.109.222 | mx06.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx07.statens-it.dk | 194.182.109.223 | mx07.statens-it.dk | AS58282 Statens IT |
| 10 | 600s | mx08.statens-it.dk | 194.182.109.224 | mx08.statens-it.dk | AS58282 Statens IT |
| TXT Record |
|---|
| 2r92g0vvnxhlggcw77hryfdpw7r7hwln |
| globalsign-domain-verification=jwehOHFyDXbpZo-WyCSD25Js_31moLujTOVCI64v61 |
| v=spf1 include:_spf.sitnet.dk include:smtp.nchosting.dk include:tls-spf.ubivox.com -all |
| Policy | Record (ler.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.sitnet.dk include:smtp.nchosting.dk include:tls-spf.ubivox.com -all |
| Policy | Record (_dmarc.ler.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.com; |
| www CNAME | ler.dk (all on ler.dk) → 5.44.139.146 (AS3292) |
| 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: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx01.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx01.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx02.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx02.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx03.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx03.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx04.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx04.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx05.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx05.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx06.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx06.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx07.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| SMTP _25._tcp.mx07.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx08.statens-it.dk | DANE-EE · Full cert · SHA-512 | 8A12C2B7C0B5B6A9B6026C875909858F… |
| SMTP _25._tcp.mx08.statens-it.dk | DANE-EE · Full cert · SHA-512 | 1DFC9477DAE259CF5EC3C684DAAEEA6C… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026092901 |
| 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 |
|---|---|---|---|
| 2026-10-05 19:25:38 | 1327ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-30 19:07:51 shown | 2966ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-29 23:50:35 | 1136ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-24 03:00:10 | 1830ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-09-15 12:36:20 | 1486ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-08-26 17:20:27 | 1046ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-27 20:56:12 | 2342ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-27 05:59:43 | 2902ms | 2 NS 1 A 8 MX | 🔒 Secure |
| 2026-06-18 04:24:43 | 1258ms | 2 NS 1 A 8 MX | 🔒 Secure |