ckhansen.dk is a .dk domain served by 2 nameservers (bill.ns.cloudflare.com, joselyn.ns.cloudflare.com). It was registered on 26 March 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.146 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route1.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.28.146 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.170.224 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | api.ckhansen.dk → 87.57.133.117 |
| 🔶 Autoconfig | api.ckhansen.dk → 87.57.133.117 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:aae0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:1c92 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.28.146,172.67.170.224 ech=AEX+DQBBPQAgACDvZvPkIlqqDidY0ovXrYtRJcZmO7sjbyca4wr75dH3dwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:aae0,2606:4700:3037::6815:1c92 |
| TXT Record |
|---|
| google-site-verification=ul4phM6iMOPRE6Yf8X-R_mVboU7ZHbrBiBoDeuOkCKY |
| v=spf1 include:amazonses.com include:_spf.mx.cloudflare.net -all |
| Policy | Record (ckhansen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:amazonses.com include:_spf.mx.cloudflare.net -all |
| Policy | Record (_dmarc.ckhansen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:sysadm@ckhansen.dk; fo=1 |
| www CNAME | api.ckhansen.dk (all on ckhansen.dk) → 87.57.133.117 (AS3292) |
| www vs bare domain | Different networks ckhansen.dk: 104.21.28.146 172.67.170.224 2606:4700:3034::6815:1c92 2606:4700:3034::ac43:aae0 (AS13335) (all like this)www.ckhansen.dk: 87.57.133.117 (AS3292) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.ckhansen.dk | api.ckhansen.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2407086487 |
| Primary NS (MNAME) | bill.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-03-26 |
| Expires | 2027-03-31 (164d) |
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 |
|---|---|---|---|
| 2026-10-14 23:29:09 | 2336ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-09 14:08:42 | 705ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-08 04:30:33 | 716ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 13:07:45 | 875ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-26 06:35:42 | 9843ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-22 04:15:43 | 1196ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-27 11:16:52 | 10193ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-16 06:05:27 | 2189ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-20 02:17:42 | 1869ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-03 12:03:56 | 1517ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 05:43:24 shown | 1551ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-21 18:32:47 | 1176ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 22:25:58 | 15108ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:44:21 | 65535ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:11:24 | 636ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:02:24 | 3298ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 21:00:19 | 967ms | 2 NS 2 A 3 MX | 🔓 Insecure |