c-hs.dk is a .dk domain served by 2 nameservers (kia.ns.cloudflare.com, thaddeus.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.171 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route1.mx.cloudflare.net, route2.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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| kia.ns.cloudflare.com | — | — | — |
| thaddeus.ns.cloudflare.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.55.171 | — | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.171.197 | — | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:37ab | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:abc5 | — | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.55.171,172.67.171.197 ech=AEX+DQBBiQAgACB6fwZmiM8HN6m0zArqRqb3a8Bz4w83oH5zMt0Ta81SRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:37ab,2606:4700:3034::ac43:abc5 |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (c-hs.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (_dmarc.c-hs.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | 104.21.55.171 172.67.171.197 2606:4700:3034::6815:37ab 2606:4700:3034::ac43:abc5 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
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: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| 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 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| 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 | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2406099090 |
| Primary NS (MNAME) | kia.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 07:26:39 | 4705ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 22:58:58 | 9795ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 03:00:58 | 998ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-24 01:46:41 | 1096ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-19 02:12:02 | 1357ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-13 06:25:50 | 2465ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-06 05:54:13 | 1381ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-04 05:33:51 | 1544ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-10 02:01:24 | 2240ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-06 15:39:24 | 1772ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-26 00:35:09 | 17775ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-17 18:17:58 | 3688ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-15 16:09:09 | 1872ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-07-02 10:37:31 | 2899ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-27 08:20:21 | 2641ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 07:46:06 | 1276ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-20 03:17:51 | 831ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 18:49:07 | 707ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-16 18:40:37 shown | 1006ms | 2 NS 2 A 3 MX | 🔓 Insecure |