henrikch.dk is a .dk domain served by 2 nameservers (ariella.ns.cloudflare.com, harley.ns.cloudflare.com). It was registered on 19 March 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by amir.mx.cloudflare.net, isaac.mx.cloudflare.net and 1 more. The zone is DNSSEC-signed and validates, 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.
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a09:5e41:6ab:690:6262:437d:cf04:802d | 300s | — | AS209424 | Fastspeed A/s | 2a09:5e41:400:0:0:0:0:0/38 | 🇩🇰 Denmark | Holsted |
| TXT Record |
|---|
| google-site-verification=umt0EWfRR39DnWcU1S22W1O3yX-LzLucq__Bwbqg46I |
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (henrikch.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.henrikch.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:hc@henrikch.dk |
| www | 104.21.47.155 172.67.148.221 2606:4700:3031::ac43:94dd 2606:4700:3032::6815:2f9b (AS13335) (address records, no CNAME) |
| www vs bare domain | Different networks henrikch.dk: 2a09:5e41:6ab:690:d92d:75d2:3b91:e56d (AS209424) (all like this)www.henrikch.dk: 104.21.47.155 172.67.148.221 2606:4700:3031::ac43:94dd 2606:4700:3032::6815:2f9b (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.amir.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.isaac.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.linda.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2410894451 |
| Primary NS (MNAME) | ariella.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Domænehajen ApS |
| Registered | 2001-03-19 |
| Expires | 2030-03-31 (1261d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 20:39:13 | 737ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-10 20:30:48 | 784ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-05 12:32:55 | 2407ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-03 12:18:47 | 663ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-10-02 15:49:20 | 746ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-30 15:32:21 | 2013ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-30 14:19:53 | 1551ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-29 14:14:33 | 1204ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-27 13:56:34 | 1324ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-24 13:37:57 | 3334ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-23 10:49:53 | 1078ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-20 18:16:44 | 1063ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-18 20:40:12 | 1085ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-14 03:48:50 | 1964ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-05 23:10:26 | 1281ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-09-01 04:34:11 | 1708ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-24 15:57:30 | 2233ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-15 04:56:59 | 2478ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-12 09:34:55 | 8827ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-08-07 18:30:09 shown | 17784ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-07-08 22:53:43 | 10779ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-29 03:29:47 | 1127ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-20 17:11:01 | 755ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-17 11:17:46 | 1363ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-17 11:11:16 | 1553ms | 2 NS 0 A 3 MX | 🔒 Secure |