cjark.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.20.205.59 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by cjark-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.simply.com | — | — | — |
| ns2.simply.com | — | — | — |
| ns3.simply.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.20.205.59 | — | linux383.unoeuro.com | AS48854 | team.blue Denmark A/S | 185.20.204.0/22 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| MS=ms44468066 |
| v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all |
| Policy | Record (cjark.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all |
| Policy | Record (_dmarc.cjark.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com; |
| www | 185.20.205.59 (AS48854) (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 |
|---|---|---|
| selector1 | selector1-cjark-dk._domainkey.cjarkaps.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-cjark-dk._domainkey.cjarkaps.onmicrosoft.com | 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: 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 | 2025042300 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:49:49 | 1412ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-03 01:54:32 | 1199ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 18:20:54 | 1187ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 00:41:07 | 865ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 17:11:38 | 1151ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 21:46:55 | 1147ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 09:46:52 | 1147ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 05:23:10 | 1185ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 11:35:41 | 947ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 22:18:26 | 3456ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:16:28 | 59117ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 21:08:06 | 2315ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 21:02:57 shown | 4520ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 21:00:45 | 1692ms | 3 NS 1 A 1 MX | 🔒 Secure |