forsi.dk is a .dk domain served by 4 nameservers (ns-a.eurodns.com, ns-b.eurodns.org, ns-c.eurodns.eu and 1 more). It was registered on 8 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.7.141.105 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by .. 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 |
|---|---|---|---|---|---|---|---|
| 81.7.141.105 | 600s | — | AS47292 | Sentia Denmark A/S | 81.7.140.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | . Null MX — domain accepts no email (RFC 7505) | |||
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (forsi.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.forsi.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; |
| www | 81.7.141.105 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · 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 | 2025060292 |
| Primary NS (MNAME) | ns-a.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2008-05-08 |
| Expires | 2027-05-31 (222d) |
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 |
|---|---|---|---|
| 2026-10-20 18:55:21 shown | 502ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 15:41:30 | 538ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 22:23:57 | 742ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 22:18:19 | 577ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 08:36:29 | 1483ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 02:44:27 | 625ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 23:06:28 | 500ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 03:48:39 | 3793ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-08 18:10:58 | 1125ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 10:51:41 | 8670ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-22 06:42:59 | 1303ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 18:35:32 | 3232ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 12:29:34 | 19512ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 15:46:27 | 2622ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 18:16:07 | 877ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:41:15 | 7383ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 10:35:02 | 763ms | 4 NS 1 A 0 MX | 🔒 Secure |
| 2026-06-17 10:25:04 | 1234ms | 4 NS 1 A 0 MX | 🔒 Secure |