a28.dk is a .dk domain served by 4 nameservers (ns1.dotserv.com, ns1.dotserv.net, ns2.dotserv.com and 1 more). It was registered on 24 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.97 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by mail.a28.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 178.20.216.97 | 14400s | s0.enavn.dk | AS21060 | Atea A/S | 178.20.216.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | mail.a28.dk | 178.20.216.97 2a01:7cc0:101:ffff::1:12 |
s0.enavn.dk — |
AS21060 Atea A/S AS21060 Atea A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7cc0:101:ffff::1:12 | 14400s | — | AS21060 | Atea A/S | 2a01:7cc0:100::/40 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 include:_spf.dotserv.com -all |
| Policy | Record (a28.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.dotserv.com -all |
| Policy | Record (_dmarc.a28.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | a28.dk (all on a28.dk) |
| www vs bare domain | Same network a28.dk: 178.20.216.97 2a01:7cc0:101:ffff::1:12 (AS21060) www.a28.dk: 178.20.216.97 2a01:7cc0:101:ffff::1:12 (AS21060) |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 3/10 · 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 |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | 8C0Dl5ffYu2r23ttlbuBW6D3hBluYjxfw/5PPhD8… |
| Field | Value |
|---|---|
| Serial | 2026042403 |
| Primary NS (MNAME) | ns1.dotserv.com |
| Responsible (RNAME) | hostmaster@dotserv.com |
| Refresh | 1800s |
| Retry | 300s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | FIONIA IT ApS |
| Registered | 2026-04-24 |
| Expires | 2027-04-23 (188d) |
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 |
|---|---|---|---|
| 2026-10-01 03:59:46 | 961ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 11:25:05 shown | 5321ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 04:44:19 | 767ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 22:52:49 | 706ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 02:50:06 | 2275ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-24 19:45:45 | 855ms | 4 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 13:15:26 | 752ms | 4 NS 1 A 1 MX | 🔓 Insecure |