ontop.dk is a .dk domain served by 2 nameservers (ns07.sac-it.dk, ns08.sac-it.dk). It was registered on 3 February 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, has no 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns07.sac-it.dk | 85.235.243.63 | 63.0-127.243.235.85.in-addr.arpa | AS3308 Norlys Telco A/S |
| ns08.sac-it.dk | 128.76.60.63 | ns08.sac-it.dk | AS3292 TDC Holding A/S |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves ontop.dk: no address www.ontop.dk: no address |
| Wildcard | No |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026070201 |
| Primary NS (MNAME) | ns07.sac-it.dk |
| Responsible (RNAME) | hostmaster@ontop.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-02-03 |
| Expires | 2027-02-28 (129d) |
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 |
|---|---|---|---|
| 2026-10-22 02:20:44 | 325ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-18 03:07:30 | 383ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-17 02:33:29 | 468ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-16 02:10:48 | 773ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-08 13:07:27 | 1834ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-10-01 07:58:11 | 679ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-24 16:21:42 | 470ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-21 20:14:55 | 613ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-10 20:24:27 | 568ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-09-03 18:29:06 | 347ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-28 01:13:15 | 373ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-20 12:49:56 | 8854ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-13 03:09:23 | 630ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-08-10 05:13:56 | 521ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-31 08:00:55 | 527ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-23 21:21:37 | 592ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-16 12:40:08 | 526ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-09 03:07:04 | 611ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-07-03 12:12:30 shown | 2325ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-28 06:31:09 | 1140ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-26 03:00:42 | 499ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-25 17:31:38 | 327ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-23 18:44:18 | 440ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-18 15:19:58 | 811ms | 2 NS 0 A 0 MX | 🔓 Insecure |
| 2026-06-17 21:56:46 | 363ms | 2 NS 0 A 0 MX | 🔓 Insecure |