clausthor.dk

📜 Historical scan 2026-06-24 11:33:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

clausthor.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 31 July 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.dandomain.dk, mx2.dandomain.dk. The zone is DNSSEC-signed and validates, 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.

🖥️ Nameservers#

2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.237.249.12	3600s	lb1.builder.nu	AS48854	team.blue Denmark A/S	212.237.248.0/23	🇩🇰 Denmark	—

📧 MX Records#

2 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	3600s	mx2.dandomain.dk	46.36.209.11	mx2.dandomain.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	212.237.249.12
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 122ms

TXT Record
google-site-verification=YO5F0Z_o6rS7kJhxrKCxe4uK_VwrrXrgPtyQtx7D4bE
v=spf1 include:spf.dandomain.dk ~all

✉️ SPF#

Policy	Record (clausthor.dk)
~all (soft fail)	v=spf1 include:spf.dandomain.dk ~all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 05:14:09

www	212.237.249.12 (AS48854) (address records, no CNAME)
www vs bare domain	Same network clausthor.dk: 212.237.249.12 (AS48854) www.clausthor.dk: 212.237.249.12 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

79ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2023061501
Primary NS (MNAME)	ns2.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 04:53:25

Field	Value
Registrar	DANDOMAIN A/S
Registered	2021-07-31
Expires	2027-07-31 (285d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

43ms

AAAA

33ms

TXT

122ms

CAA

42ms

HTTPS

87ms

TLSA

75ms

SOA

42ms

MTA-STS

67ms

DNSSEC

79ms

SRV

220ms

Total

640ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 00:38:23	527ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-31 14:55:28	532ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-28 10:58:07	646ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 11:33:29 shown	640ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-20 17:03:02	1069ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-20 04:41:56	642ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-20 02:42:56	462ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-16 21:10:48	541ms	2 NS 1 A 2 MX	🔒 Secure