fsf.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was registered on 29 April 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.83.77.12 is hosted by Sipato ApS (AS50364) in Denmark. Mail is handled by mail.tjek-mail.dk. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 77.83.77.12 | 600s | mail.amplus.dk | AS50364 | Sipato ApS | 77.83.76.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail.tjek-mail.dk | 77.83.77.12 | mail.amplus.dk | AS50364 Sipato ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 77.83.77.12 |
| 🔶 Autoconfig | 77.83.77.12 |
| www | 77.83.77.12 (AS50364) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 3407191434 |
| Primary NS (MNAME) | ns1pri.webhosting.dk |
| Responsible (RNAME) | hostmaster@webhosting.dk |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 14515200s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2024-04-29 |
| Expires | 2027-04-28 (192d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 10:14:51 shown | 577ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 08:54:21 | 411ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 00:18:46 | 458ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 16:45:20 | 1644ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 09:33:19 | 548ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 09:35:25 | 900ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 00:27:33 | 3645ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 04:09:19 | 975ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 03:13:50 | 808ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 09:43:04 | 849ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 13:08:24 | 3800ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:32:53 | 842ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:26:34 | 630ms | 5 NS 1 A 1 MX | 🔒 Secure |