890.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 6 January 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail-ex1.890.dk, mail-ex2.890.dk. The zone is DNSSEC-signed and validates, 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail-ex1.890.dk | 194.11.26.201 | mail-ex1.890.dk | AS216313 Completnet ApS |
| 20 | 600s | mail-ex2.890.dk | 194.11.26.202 | mail-ex2.890.dk | AS216313 Completnet ApS |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (890.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.890.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@890.dk; ruf=mailto:dmarc@890.dk; sp=reject; aspf=r |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves 890.dk: no address www.890.dk: no address |
| Wildcard | No |
| 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 |
|---|---|---|
| dkim | — | 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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026082601 |
| 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 | 2019-01-06 |
| Expires | 2027-01-31 (99d) |
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).
| Domain | Registrar |
|---|---|
| hoerbakken.dk | Punktum dk A/S (direct) |
| hovslund.dk | Punktum dk A/S (direct) |
| mjg.dk | Simply.com A/S |
| quack.dk | Simply.com A/S |
| spinner.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 22:09:15 | 696ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-01 14:25:08 | 737ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 14:22:20 | 564ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-16 21:55:07 | 847ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-26 12:07:27 shown | 474ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-14 12:35:45 | 8725ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-28 12:45:45 | 1376ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-27 19:22:00 | 645ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-22 22:49:39 | 668ms | 4 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-22 15:16:19 | 1019ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 12:47:03 | 904ms | 4 NS 0 A 2 MX | 🔒 Secure |