clausbermann.dk

📜 Historical scan 2026-06-19 23:55:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

clausbermann.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 May 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.26 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 35ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.26	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

5 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c0e::1a 2a00:1450:4010:c0e::1a 64.233.164.26	lu-in-f26.1e100.net lu-in-x1a.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:d6:45a0:610a:1474	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 211ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.clausbermann.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:claus@clausbermann.dk

📬 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 13:40:19

www	46.30.213.26 2a02:2350:5:10a:d6:45a0:610a:1474 (AS51468) (address records, no CNAME)
www vs bare domain	Same network clausbermann.dk: 46.30.213.26 2a02:2350:5:10a:d6:45a0:610a:1474 (AS51468) www.clausbermann.dk: 46.30.213.26 2a02:2350:5:10a:d6:45a0:610a:1474 (AS51468)
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#

124ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2026061901
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 2026-10-12 14:00:47

Field	Value
Registrar	ONE.COM A/S
Registered	2008-05-19
Expires	2027-05-31 (225d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
festwebtest.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

46ms

54ms

AAAA

44ms

TXT

211ms

CAA

46ms

HTTPS

136ms

TLSA

2118ms

SOA

45ms

MTA-STS

67ms

DNSSEC

124ms

SRV

2049ms

Total

4641ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 13:40:19	596ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-27 03:06:17	625ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-15 07:10:41	1053ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-21 01:49:35	2311ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-13 00:55:13	1805ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-22 16:19:38	1216ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-12 08:28:02	1491ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 10:49:45	744ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-23 23:00:06	906ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 23:55:11 shown	4641ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 21:10:24	608ms	2 NS 1 A 5 MX	🔒 Secure