open-top.dk is a .dk domain served by 5 nameservers (ns1.gigahost.dk, ns2.gigahost.dk, ns3.gigahost.dk and 2 more). It was registered on 14 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.224 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by eu-smtp-inbound-1.mimecast.com, eu-smtp-inbound-2.mimecast.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 217.116.232.224 | 3600s | web24.gigahost.dk | AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | open-top.dk → 217.116.232.224 |
| 🔶 Autoconfig | open-top.dk → 217.116.232.224 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | autodiscover.gigahost.dk |
| www CNAME | open-top.dk (all on open-top.dk) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.open-top.dk | open-top.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026100101 |
| Primary NS (MNAME) | ns1.gigahost.dk |
| Responsible (RNAME) | hostmaster@open-top.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-09-14 |
| Expires | 2027-05-31 (224d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 12:41:40 | 1197ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-09 01:46:30 | 1051ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-03 00:46:43 | 1812ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-01 03:56:05 shown | 2075ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-25 02:13:12 | 1363ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-24 23:01:38 | 1039ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-17 23:07:05 | 1905ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-14 19:40:08 | 2121ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-04 07:59:48 | 1434ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 06:55:35 | 1344ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-21 01:12:37 | 2266ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-14 02:13:19 | 3698ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-07 00:47:03 | 1880ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-23 04:11:26 | 10531ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-17 06:16:04 | 17329ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-09 04:22:12 | 2680ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-05 00:28:01 | 7281ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-25 11:05:25 | 1502ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-17 11:37:33 | 1101ms | 5 NS 1 A 2 MX | 🔓 Insecure |