2a2cp.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 18 January 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.228.90.24 is hosted by Altibox Danmark AS (AS214875) in Denmark. Mail is handled by 2a2cp-dk.mx.emailscanner.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 188.228.90.24 | 3600s | 188.228.90.24.dynamic.altibox.net | AS214875 | Altibox Danmark AS | 188.228.88.0/22 | 🇩🇰 Denmark | Holstebro |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | 2a2cp-dk.mx.emailscanner.dk | 188.228.90.24 | 188.228.90.24.dynamic.altibox.net | AS214875 Altibox Danmark AS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a00:fd01:100:700::3294 | 3600s | — | AS214875 | Altibox Danmark AS | 2a00:fd00:0:0:0:0:0:0/31 | 🇩🇰 Denmark | Holstebro |
| TXT Record |
|---|
| v=spf1 ip4:188.228.90.24 -all |
| Policy | Record (2a2cp.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:188.228.90.24 -all |
| Policy | Record (_dmarc.2a2cp.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:postmaster@emailscanner.dk; |
| www | 188.228.90.24 (AS214875) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 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: 0/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.2a2cp.dk | VWlyewNV-HqwRx_i8jQkQ3UXKZRf_qqIf2TrQKrQkxw |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100100 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2020-01-18 |
| Expires | 2027-01-31 (106d) |
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 |
|---|---|---|---|
| 2026-10-12 22:31:21 | 1945ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-08 07:20:48 | 479ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 09:11:53 shown | 967ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 08:41:58 | 543ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 21:19:51 | 687ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 14:48:53 | 886ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 03:37:13 | 876ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 12:43:16 | 940ms | 4 NS 1 A 1 MX | 🔒 Secure |