clausen.dk DNS records

🖥️ Nameservers2 records 263ms

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 Records1 records 260ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.235.58.95	600s	—	AS60781	LeaseWeb Netherlands B.V.	77.235.56.0/21	🇳🇱 The Netherlands	—

📧 MX Records4 records 267ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod15-cph3.g1i.one.com	104.37.35.36	mx1.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod15-cph3.g1i.one.com	104.37.35.37	mx2.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod15-cph3.g1i.one.com	104.37.35.38	mx3.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod15-cph3.g1i.one.com	104.37.35.39	mx4.mailpod15-cph3.g1i.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	94.231.109.178
🔶 Autoconfig	94.231.109.178

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 651ms

TXT Record
v=spf1 include:_custspf.one.com -all

✉️ SPF

Policy	Record (clausen.dk)
-all (hard fail)	v=spf1 include:_custspf.one.com -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

🔗 TLSA / DANE4 records 418ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…
SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	E54A7262DC6E3E0F06227A22B71D01DC…

🔐 DNSSEC555ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026082005
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

263ms

A

260ms

MX

267ms

AAAA

300ms

TXT

651ms

CAA

424ms

HTTPS

326ms

TLSA

418ms

SOA

0ms

MTA-STS

424ms

DNSSEC

555ms

SRV

454ms

Total

6925ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-20 21:48:32	6925ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-08-16 04:32:30	7618ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-07-26 20:53:42	5031ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-07-01 21:52:17	861ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-06-22 11:18:30	886ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-06-22 04:37:29	1159ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 20:06:57	684ms	2 NS 1 A 4 MX	🔓 Insecure	View
2026-06-16 21:10:56	759ms	2 NS 1 A 4 MX	🔓 Insecure	View