c1.dk is a .dk domain served by 2 nameservers (ns1.proisp.no, ns2.proisp.no). It was registered on 24 October 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.c1.dk. The zone is not DNSSEC-signed, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.250.221.9 | 300s | cpanel73.proisp.no | AS28824 | — | — | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | mail.c1.dk | 46.250.221.9 | cpanel73.proisp.no | AS28824 Emp Secure As |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 46.250.221.9 |
| 🔶 Autoconfig | 46.250.221.9 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanel73.proisp.no |
| TXT Record |
|---|
| v=spf1 ip4:46.250.221.9 +a +mx +ip4:46.250.221.8 ~all |
| Policy | Record (c1.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:46.250.221.9 +a +mx +ip4:46.250.221.8 ~all |
| www | 185.134.245.113 2a01:5b40:0:bc03::1 (AS12996) (address records, no CNAME) |
| www vs bare domain | Same network c1.dk: 185.134.245.113 2a01:5b40:0:bc03::1 (AS12996) www.c1.dk: 185.134.245.113 2a01:5b40:0:bc03::1 (AS12996) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.c1.dk | IdjNBov-QRzAPXt6ePiaIbheCm6zeoLoE7Q5qveIYEQ |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026062201 |
| Primary NS (MNAME) | ns1.proisp.no |
| Responsible (RNAME) | felles@proisp.no |
| Refresh | 3600s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Domeneshop AS |
| Registered | 2002-10-24 |
| Expires | 2028-12-31 (801d) |
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 19:51:22 | 1908ms | 3 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 21:46:44 | 1452ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-24 08:33:58 | 11665ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-23 00:09:14 | 3683ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-22 00:00:15 | 3646ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-20 23:49:12 | 10790ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-19 21:47:20 | 3070ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-18 21:10:31 | 3067ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-17 08:32:53 | 10064ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-14 20:26:53 | 3846ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-13 13:01:43 | 4781ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-11 08:05:53 | 3834ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-09 19:05:47 | 6966ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-08-08 10:50:26 | 6390ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-31 12:47:41 | 2627ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-27 21:48:27 | 11517ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-26 21:20:56 | 10606ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-25 20:46:13 | 11501ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-24 20:22:12 | 3567ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-23 19:27:16 | 9488ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-22 14:28:21 | 2227ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-21 13:45:40 | 10392ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-20 11:25:04 | 3531ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-19 09:25:25 | 11593ms | 2 NS 0 A 0 MX | ❓ Unknown |
| 2026-07-18 05:34:19 | 34641ms | 2 NS 0 A 0 MX | ❓ Unknown |