ckjaersig.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 31 August 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.106.189 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.com. The zone is DNSSEC-signed but currently fails validation, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| ns4.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 94.231.106.189 | — | linux45.unoeuro.com | AS48854 | team.blue Denmark A/S | 94.231.96.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| TXT Record |
|---|
| google-site-verification=SGUnT34zMNNX5odia1atEDjgEpPQ8SE_apr_ZkxGuGs |
| v=spf1 include:spf.simply.com include:mailgun.org include:relay.mailchannels.net ~all |
| Policy | Record (ckjaersig.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.simply.com include:mailgun.org include:relay.mailchannels.net ~all |
| Policy | Record (_dmarc.ckjaersig.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@ckjaersig.dk |
| www | 104.21.9.189 172.67.189.132 2606:4700:3033::6815:9bd 2606:4700:3036::ac43:bd84 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network ckjaersig.dk: 104.21.9.189 172.67.189.132 2606:4700:3033::6815:9bd 2606:4700:3036::ac43:bd84 (AS13335) www.ckjaersig.dk: 104.21.9.189 172.67.189.132 2606:4700:3033::6815:9bd 2606:4700:3036::ac43:bd84 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 7/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: insecurity proof failed |
| Field | Value |
|---|---|
| Serial | 2026052200 |
| 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 | 2011-08-31 |
| Expires | 2027-08-31 (316d) |
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 |
|---|---|---|---|
| 2026-10-18 07:20:40 | 732ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 22:08:21 | 705ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 20:30:00 | 1016ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 15:13:52 | 1102ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 12:31:38 | 666ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-20 16:22:14 | 2342ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 15:27:39 | 596ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:46:34 | 65535ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 21:24:15 shown | 1543ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-16 21:09:36 | 392ms | 4 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-16 21:00:35 | 625ms | 4 NS 1 A 1 MX | 🔒 Secure |