a2sea.dk is a .dk domain served by 3 nameservers (ns4.hostonline.dk, ns5.hostonline.dk, ns6.hostonline.dk). It was registered on 6 June 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.66.88.226 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.deme-group.c3s2.iphmx.com, mx2.deme-group.c3s2.iphmx.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 77.66.88.226 | 59s | lb-secure.ng.peytz.dk | AS47292 | Sentia Denmark A/S | 77.66.88.0/22 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| c2dnbzgvgncl4h+ov0kklcujierfv+fxs6qoxarjhbh0dfv4lc76txvmpqymoyjvam0d4ciuiphmkws16tfg5w== |
| MS=ms18371197 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (a2sea.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.a2sea.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; aspf=r; |
| www CNAME | a2sea.dk (all on a2sea.dk) → 77.66.88.226 (AS47292) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026070202 |
| Primary NS (MNAME) | ns4.hostonline.dk |
| Responsible (RNAME) | hostmaster@hostonline.dk |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2001-06-06 |
| Expires | 2027-06-30 (256d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 21:44:09 | 2125ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-10 11:08:33 | 2033ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-05 21:29:46 | 1030ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 21:03:23 | 1133ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-25 20:02:00 | 1278ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-21 17:55:57 | 1183ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-19 22:18:59 | 1733ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-12 20:56:48 | 940ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-09 01:52:55 | 1059ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-03 12:22:30 | 9916ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 12:22:53 | 9794ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-26 23:35:06 | 10192ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-26 20:11:54 | 914ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-21 12:53:55 | 1472ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-16 05:24:45 | 3979ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-12 06:46:08 | 3197ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-10 02:38:09 | 3105ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-05 01:29:27 | 4152ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-27 13:16:52 | 8867ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-22 06:06:21 | 16941ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-17 15:48:41 | 1051ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-12 18:54:47 | 1004ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-08 22:29:32 | 9083ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-07-03 13:48:23 shown | 5003ms | 3 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-27 13:19:16 | 1019ms | 3 NS 1 A 2 MX | 🔓 Insecure |