assureonline.dk is a .dk domain served by 4 nameservers (ns1.nhl-data.dk, ns2.nhl-data.dk, ns3.nhl-data.dk and 1 more). It was registered on 22 September 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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.
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (assureonline.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.assureonline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:6a3e7feca252b@dmarc-dk.centerasecurity.com; |
| www | Exists, no address |
| www vs bare domain | Neither resolves assureonline.dk: no address www.assureonline.dk: no address |
| 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 | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026071901 |
| Primary NS (MNAME) | ns1.nhl-data.dk |
| Responsible (RNAME) | hostmaster@nhl-data.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | NHL DATA ApS |
| Registered | 2023-09-22 |
| Expires | 2027-09-21 (328d) |
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 |
|---|---|---|---|
| 2026-10-27 14:25:38 | 452ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-10-08 13:17:36 | 775ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-30 09:53:27 | 571ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-09-20 02:52:27 | 581ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-29 14:02:17 | 5400ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-08-09 03:14:19 | 970ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-19 23:59:40 shown | 4692ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-07-01 22:20:55 | 8623ms | 4 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-28 03:10:30 | 1366ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-27 03:02:50 | 8797ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-25 01:04:09 | 1158ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-22 08:16:36 | 3302ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-21 08:02:05 | 963ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 13:57:51 | 2836ms | 4 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-16 13:46:16 | 312ms | 4 NS 0 A 0 MX | 🔓 Insecure |