how.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.239.196.34 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail1.how.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 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 |
|---|---|---|---|---|---|---|---|
| 89.239.196.34 | 600s | mail1.how.dk | AS44869 | FIBIA P/S | 89.239.192.0/18 | 🇩🇰 Denmark | Odense |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail1.how.dk | 89.239.196.34 | mail1.how.dk | AS44869 FIBIA P/S |
| TXT Record |
|---|
| google-site-verification=Bgc4jqQRKMm6MFfT3kZGV1g_BXa9mWgkICMU4pyYZyc |
| v=spf1 mx ~all |
| Policy | Record (how.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx ~all |
| Policy | Record (_dmarc.how.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;rua=mailto:dmarc.rua@how.dk;ruf=mailto:dmarc.ruf@how.dk;fo=1;rf=afrf;pct=100 |
| www CNAME | how.dk (all on how.dk) → 89.239.196.34 (AS44869) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100101 |
| 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 | ONE.COM A/S |
| Registered | 1997-01-07 |
| Expires | 2027-06-30 (255d) |
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).
| Domain | Registrar |
|---|---|
| 2onsdag.dk | Punktum dk A/S (direct) |
| fadso.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:38:39 shown | 869ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 05:25:55 | 772ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 04:51:21 | 720ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 08:42:44 | 1381ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 07:56:40 | 2785ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 05:01:14 | 804ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 19:33:00 | 674ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-25 07:23:54 | 992ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 06:44:11 | 777ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 03:48:02 | 1151ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 13:25:45 | 2686ms | 2 NS 1 A 1 MX | 🔒 Secure |