kjærsulf.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 1 February 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.52.144.239 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mail.xn--kjrsulf-nxa.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 |
|---|---|---|---|---|---|---|---|
| 86.52.144.239 | 3600s | 86-52-144-239.norlyscustomer.net | AS39642 | Sinal A/S | 86.52.0.0/16 | 🇩🇰 Denmark | Aalborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.xn--kjrsulf-nxa.dk | 164.90.235.99 | — | AS14061 DigitalOcean, LLC |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 86.52.144.239 |
| 🔶 Autoconfig | 86.52.144.239 |
| www | 86.52.144.239 (AS39642) (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 |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | ncache nxdomain overridden by dig AD |
| 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 | Simply.com A/S |
| Registered | 2004-02-01 |
| Expires | 2031-02-28 (1591d) |
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 |
|---|---|
| cochi.dk | Simply.com A/S |
| i-arkaden.dk | Simply.com A/S |
| salgslisten.dk | Simply.com A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 02:53:36 shown | 1239ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 17:09:29 | 1860ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 15:44:33 | 846ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-14 22:07:01 | 544ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 17:16:30 | 786ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 05:40:12 | 1091ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 17:17:52 | 727ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-20 01:19:47 | 3993ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 05:05:22 | 831ms | 4 NS 1 A 1 MX | 🔒 Secure |