sibba.dk DNS records

🖥️ Nameservers2 records 41ms

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 65ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.128	3600s	webcluster1.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 240ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod13-cph3.one.com	185.10.9.42	mx1.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod13-cph3.one.com	185.10.9.43	mx2.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod13-cph3.one.com	185.10.9.44	mx3.pub.mailpod13-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod13-cph3.one.com	185.10.9.45	mx4.pub.mailpod13-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 49ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:2:f62:6c82:ad45	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 Records2 records 364ms

TXT Record
protonmail-verification=33c6fd8249327b19465bc418a5aed53efb556cf7
v=spf1 include:send.heysender.com ~all

✉️ SPF

Policy	Record (sibba.dk)
~all (soft fail)	v=spf1 include:send.heysender.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 126ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx2.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx3.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…
SMTP _25._tcp.mx4.pub.mailpod13-cph3.one.com	DANE-EE · SPKI · SHA-256	BE8C554E6A2A9BFE9F87080F0AE71BAD…

🔐 DNSSEC259ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-08-26 09:11:54

Field	Value
Registrar	ONE.COM A/S
Registered	2024-10-14
Expires	2026-10-13 (40d)

📋 WHOIS

⏱️ Lookup Timing

NS

41ms

A

65ms

MX

240ms

AAAA

49ms

TXT

364ms

CAA

47ms

HTTPS

57ms

TLSA

126ms

SOA

0ms

MTA-STS

84ms

DNSSEC

259ms

SRV

239ms

Total

923ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 09:10:47	923ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-22 01:27:21	5977ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-12 18:07:15	3232ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 22:03:47	9770ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 05:35:59	809ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-27 14:08:37	604ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 00:18:44	937ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 15:46:23	558ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-18 04:30:58	2835ms	2 NS 1 A 4 MX	🔒 Secure	View