clausq.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.184 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.184 | 3600s | webcluster57.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:102:80c0:9db7:d2ac:2fc2 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| protonmail-verification=ba31ddd013932ff871ccd80d1a2f3b2eb17dad3d |
| v=spf1 include:_custspf.one.com include:_spf.protonmail.ch ~all |
| Policy | Record (clausq.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_custspf.one.com include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.clausq.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 77.111.240.184 2a02:2350:5:102:80c0:9db7:d2ac:2fc2 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network clausq.dk: 77.111.240.184 2a02:2350:5:102:80c0:9db7:d2ac:2fc2 (AS51468) www.clausq.dk: 77.111.240.184 2a02:2350:5:102:80c0:9db7:d2ac:2fc2 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100301 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2007-03-14 |
| Expires | 2027-03-31 (164d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-04 13:33:08 shown | 1005ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-03 13:31:56 | 6426ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-29 19:32:12 | 582ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-06 07:21:25 | 1237ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-25 16:31:03 | 2063ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-24 15:57:48 | 9801ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-07 21:59:25 | 8815ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-01 21:15:35 | 693ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-26 19:06:30 | 1358ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 19:29:57 | 2767ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-22 12:43:02 | 962ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-19 14:12:01 | 705ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 21:10:54 | 652ms | 2 NS 1 A 2 MX | 🔒 Secure |