fossum.dk is a .dk domain served by 4 nameservers (ns1.wwi.dk, ns2.wwi.dk, ns3.wwi.as and 1 more). It was registered on 19 October 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.4.216.5 is hosted by Itm8 A/S (AS62319) in Denmark. Mail is handled by fossum-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 185.4.216.5 | 900s | cp04.whm.wwi.dk | AS62319 | Itm8 A/S | 185.4.216.0/22 | 🇩🇰 Denmark | Viby J |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | fossum.dk → 185.4.216.5 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (fossum.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.fossum.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:65c0eec842d42@dmarc-dk.centerasecurity.com; |
| www CNAME | fossum.dk (all on fossum.dk) → 185.4.216.5 (AS62319) |
| 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 | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-fossum-dk._domainkey.fossumdk.onmicrosoft.com | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
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 | 2009010390 |
| Primary NS (MNAME) | ns10.dnsmadeeasy.com |
| Responsible (RNAME) | dns@dnsmadeeasy.com |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 180s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2001-10-19 |
| Expires | 2026-12-31 (68d) |
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 |
|---|---|
| com-municipality.dk | Punktum dk A/S (direct) |
| communicipality.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 15:26:35 | 1482ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 19:36:13 | 1627ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 19:20:10 | 1201ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 15:29:10 | 1022ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-05 00:58:08 | 3265ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-03 10:11:59 | 1248ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 13:01:32 | 1379ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 13:34:31 | 1292ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 19:12:08 | 1488ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 22:07:13 | 3039ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 19:03:44 shown | 1054ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 07:47:30 | 909ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 10:03:37 | 1236ms | 4 NS 1 A 1 MX | 🔒 Secure |