rfk.dk DNS records

🖥️ Nameservers2 records 93ms

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 70ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.123	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records3 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod8-cph3.one.com	185.164.14.102	mx1.pub.mailpod8-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod8-cph3.one.com	185.164.14.103	mx2.pub.mailpod8-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod8-cph3.one.com	185.164.14.104	mx3.pub.mailpod8-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 80ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:80d9:d734:8ee0:5704	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 231ms

TXT Record
google-site-verification=78Y3ERxSWqZTcNeMWGKpNGdhcANlPGH2bSUZFIMJONs
v=spf1 include:_custspf.one.com ~all

✉️ SPF

Policy	Record (rfk.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC

Policy	Record (_dmarc.rfk.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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 / DANE3 records 124ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod8-cph3.one.com	DANE-EE · SPKI · SHA-256	BF2BAC81D64CD548F2920A7E0ADF7907…
SMTP _25._tcp.mx2.pub.mailpod8-cph3.one.com	DANE-EE · SPKI · SHA-256	BF2BAC81D64CD548F2920A7E0ADF7907…
SMTP _25._tcp.mx3.pub.mailpod8-cph3.one.com	DANE-EE · SPKI · SHA-256	BF2BAC81D64CD548F2920A7E0ADF7907…

🔐 DNSSEC152ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081802
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

93ms

A

70ms

MX

82ms

AAAA

80ms

TXT

231ms

CAA

77ms

HTTPS

84ms

TLSA

124ms

SOA

0ms

MTA-STS

102ms

DNSSEC

152ms

SRV

102ms

Total

1097ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 05:23:03	1097ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-19 06:24:41	3390ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-17 22:01:40	864ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-13 06:11:09	1584ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-08 14:00:34	8831ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-02 15:01:44	9587ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 18:55:32	1013ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-22 07:44:51	1034ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 21:57:52	1239ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-20 21:04:06	1134ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 01:37:02	3498ms	2 NS 1 A 3 MX	🔒 Secure	View