fenris-security.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 22 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.60.89.57 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.fenris-security.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 |
|---|---|---|---|---|---|---|---|
| 87.60.89.57 | 43200s | 87-60-89-57-static.dk.customer.tdc.net | AS3292 | TDC Holding A/S | 87.60.0.0/16 | 🇩🇰 Denmark | Kokkedal |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 43200s | mail.fenris-security.dk | 87.60.89.57 | 87-60-89-57-static.dk.customer.tdc.net | AS3292 TDC Holding A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | fenris-security.dk → 87.60.89.57 |
| 🔶 Autoconfig | fenris-security.dk → 87.60.89.57 |
| TXT Record |
|---|
| v=spf1 +a +mx +a:WIN-GM8N8KNBOOR.local -all |
| Policy | Record (fenris-security.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +a:WIN-GM8N8KNBOOR.local -all |
| Policy | Record (_dmarc.fenris-security.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 46.30.211.38 (AS51468) (address records, no CNAME) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.fenris-security.dk | fenris-security.dk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101602 |
| 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 | 2006-02-22 |
| Expires | 2027-02-28 (126d) |
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 |
|---|---|---|---|
| 2026-10-17 10:12:47 shown | 732ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-12 01:27:36 | 852ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-06 23:29:25 | 467ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 22:17:24 | 530ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 23:15:12 | 600ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 14:27:39 | 814ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-11 06:26:28 | 740ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 19:46:41 | 9638ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 01:32:41 | 704ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 19:43:53 | 4786ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 04:03:11 | 967ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 13:40:51 | 922ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 20:51:07 | 656ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:03:08 | 616ms | 2 NS 1 A 1 MX | 🔒 Secure |