amarkup.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 3 July 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.7.129.124 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 81.7.129.124 | 3600s | — | AS47292 | Sentia Denmark A/S | 81.7.128.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 81.7.129.124 |
| 🔶 Autoconfig | 81.7.129.124 |
| www | 81.7.129.124 (AS47292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2021111801 |
| Primary NS (MNAME) | ns1.123hotel.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-07-03 |
| Expires | 2027-07-31 (286d) |
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 |
|---|---|---|---|
| 2026-09-29 15:30:01 shown | 1536ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 09:51:49 | 518ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 09:22:51 | 649ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-27 15:52:32 | 550ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 17:32:05 | 614ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 11:58:32 | 982ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 07:56:10 | 3217ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 13:00:32 | 1965ms | 2 NS 1 A 1 MX | 🔒 Secure |