cotton.dk

📜 Historical scan 2026-10-09 13:51:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

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.

🖥️ Nameservers#

2 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
109.107.36.146	43200s	wopr.protovision.co.uk	AS51059	Brightbox Systems Ltd	109.107.32.0/20	🇬🇧 United Kingdom	—

📧 MX Records#

7 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	aspmx.l.google.com	173.194.222.26 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b	lo-in-f26.1e100.net lt-in-x1b.1e100.net lt-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:1348:ffff:ffff::6d6b:2492	43200s	wopr.protovision.co.uk	AS51059	Brightbox Systems Ltd	2a02:1348:0:0:0:0:0:0/32	🇬🇧 United Kingdom	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 197ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (cotton.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.cotton.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:postadmin@cotton.dk; fo=1; pct=100

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 22:26:32

www CNAME	cotton.dk (all on cotton.dk) → 109.107.36.146 2a02:1348:ffff:ffff::6d6b:2492 (AS51059)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

139ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

53ms

Field	Value
Serial	2026091001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 15:45:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-10-23
Expires	2031-12-31 (1897d)

📋 WHOIS#

⏱️ Lookup Timing#

48ms

58ms

55ms

AAAA

60ms

TXT

197ms

CAA

63ms

HTTPS

55ms

TLSA

1150ms

SOA

53ms

MTA-STS

78ms

DNSSEC

139ms

SRV

63ms

Total

2314ms

🕐 Scan History#

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 shown	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	918ms	2 NS 1 A 7 MX	🔒 Secure