favrholdt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 August 2002 (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 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 |
|---|---|---|---|---|---|---|---|
| 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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | favrholdt.dk → 89.239.196.34 |
| 🔶 Autoconfig | favrholdt.dk → 89.239.196.34 |
| TXT Record |
|---|
| v=spf1 mx ~all |
| Policy | Record (favrholdt.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx ~all |
| Policy | Record (_dmarc.favrholdt.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www CNAME | favrholdt.dk (all on favrholdt.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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.favrholdt.dk | favrholdt.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026052401 |
| 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 | 2002-08-29 |
| Expires | 2027-06-30 (247d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 19:13:38 | 541ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 11:08:02 | 1886ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 10:51:05 | 721ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 15:15:21 | 1569ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 15:20:12 | 692ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 04:14:59 | 735ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 21:32:51 | 699ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-25 14:41:24 | 1660ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 02:38:16 | 1936ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 04:35:55 shown | 660ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 09:39:43 | 1528ms | 2 NS 1 A 1 MX | 🔒 Secure |