leth-nissen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 July 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.179.209.74 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx1.openhosting.fandrup.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 188.179.209.74 | — | 188-179-209-74-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 188.176.0.0/13 | 🇩🇰 Denmark | Kongens Lyngby |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx1.openhosting.fandrup.dk | 78.46.47.217 | m.mail-service.dk | AS24940 Hetzner Online GmbH |
| TXT Record |
|---|
| v=spf1 mx a a:mail.fandrup.dk a:mail.leth-nissen.dk a:m.mail-service.dk -all |
| Policy | Record (leth-nissen.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a a:mail.fandrup.dk a:mail.leth-nissen.dk a:m.mail-service.dk -all |
| Policy | Record (_dmarc.leth-nissen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:postmaster@leth-nissen.dk; ruf=mailto:postmaster@leth-nissen.dk; adkim=r; aspf=r; pct=50; sp=none |
| www CNAME | webserver.fandrup.dk (all on fandrup.dk) → 217.157.207.28 (AS9158) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 5/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061701 |
| 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 | 1998-07-07 |
| Expires | 2027-09-30 (341d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-23 01:13:34 | 802ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-20 13:25:18 | 1005ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-19 09:41:16 | 481ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 14:38:52 | 500ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-19 14:58:53 | 1078ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 12:29:09 | 1006ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-18 08:17:11 | 739ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 02:57:03 | 810ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 15:17:39 shown | 541ms | 2 NS 1 A 1 MX | 🔒 Secure |