rj-45.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 February 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.126.53.19 is hosted by KIKKENBORG FIBER & IT ApS (AS198473) in Denmark. Mail is handled by mail.rj-45.dk. 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 |
|---|---|---|---|---|---|---|---|
| 185.126.53.19 | 600s | bendata-test.dk | AS198473 | KIKKENBORG FIBER & IT ApS | 185.126.53.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 600s | mail.rj-45.dk | 185.126.53.19 | bendata-test.dk | AS198473 KIKKENBORG FIBER & IT ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.126.53.19 |
| 🔶 Autoconfig | 185.126.53.19 |
| TXT Record |
|---|
| v=spf1 mx a ip4:185.126.53.19 ~all |
| Policy | Record (rj-45.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a ip4:185.126.53.19 ~all |
| www | 185.126.53.19 (AS198473) (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: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026101200 |
| 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 | 2012-02-18 |
| Expires | 2027-02-28 (133d) |
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 |
|---|---|
| bendata-test.dk | Punktum dk A/S (direct) |
| bendata.dk | Punktum dk A/S (direct) |
| primitivo.dk | Simply.com A/S |
| primo-data.dk | Punktum dk A/S (direct) |
| primodata.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 19:54:32 shown | 390ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 08:42:31 | 1422ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 08:35:57 | 421ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 23:51:12 | 450ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 18:43:05 | 716ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-25 15:47:37 | 675ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 17:54:32 | 578ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 13:09:18 | 684ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 11:39:55 | 1016ms | 4 NS 1 A 1 MX | 🔒 Secure |