cotton.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 109.107.36.146 is hosted by Brightbox Systems Ltd (AS51059) in United Kingdom. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 109.107.36.146 | — | wopr.protovision.co.uk | AS51059 | Brightbox Systems Ltd | 109.107.32.0/20 | 🇬🇧 United Kingdom | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:1348:ffff:ffff::6d6b:2492 | — | — | AS51059 | Brightbox Systems Ltd | 2a02:1348:0:0:0:0:0:0/32 | 🇬🇧 United Kingdom | — |
| TXT Record |
|---|
| v=spf1 include:_spf.google.com ~all |
| Policy | Record (cotton.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com ~all |
| Policy | Record (_dmarc.cotton.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:postadmin@cotton.dk; fo=1; pct=100 |
| www CNAME | cotton.dk (all on cotton.dk) |
| www vs bare domain | Same network cotton.dk: 109.107.36.146 2a02:1348:ffff:ffff::6d6b:2492 (AS51059) www.cotton.dk: 109.107.36.146 2a02:1348:ffff:ffff::6d6b:2492 (AS51059) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | RSA · ~2048 bit |
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| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026061101 |
| 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 | Punktum dk A/S (direct) |
| Registered | 1997-10-23 |
| Expires | 2031-12-31 (1897d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 22:26:32 | 2057ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-10-09 13:51:32 | 2314ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-10-01 05:21:56 | 950ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-30 06:48:31 | 810ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-09-12 08:51:09 | 2265ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-08-12 18:16:58 | 1586ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-21 10:16:06 | 9412ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-18 00:47:05 | 17272ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-07-13 10:57:32 | 2123ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-26 15:20:44 | 1002ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-24 02:31:07 | 4513ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-22 22:20:28 | 1117ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 06:56:16 | 3541ms | 2 NS 1 A 7 MX | 🔒 Secure |
| 2026-06-16 22:35:29 shown | 918ms | 2 NS 1 A 7 MX | 🔒 Secure |