rbk.dk DNS records

🖥️ Nameservers2 records 25ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com	108.162.192.180 172.64.32.180 173.245.58.180 2606:4700:50::adf5:3ab4 2803:f800:50::6ca2:c0b4 2a06:98c1:50::ac40:20b4	kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 25ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.23.198	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.56	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	300s	mx2.dandomain.dk	46.36.209.11	mx2.dandomain.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.dandomain.dk → 212.237.249.98
🔶 Autoconfig	autoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:17c6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:d538	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.198,172.67.213.56 ech=AEX+DQBB6AAgACDpnUx7tqw+BbPVVlHpD7WfMUorhCCLsWaF4xb4UbwREAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:17c6,2606:4700:3036::ac43:d538

📝 TXT Records1 records 129ms

TXT Record
v=spf1 mx a ip4:84.19.174.8 include:spf.dandomain.dk ~all

✉️ SPF

Policy	Record (rbk.dk)
~all (soft fail)	v=spf1 mx a ip4:84.19.174.8 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

🔗 TLSA / DANE

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

🔐 DNSSEC95ms

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

🏷️ SOA0ms

Field	Value
Serial	2413446982
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

25ms

A

25ms

MX

28ms

AAAA

31ms

TXT

129ms

CAA

33ms

HTTPS

34ms

TLSA

46ms

SOA

0ms

MTA-STS

39ms

DNSSEC

95ms

SRV

46ms

Total

529ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 23:01:14	529ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-27 17:23:58	519ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-26 17:17:39	939ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-15 17:19:30	1401ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-20 14:23:19	9135ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-18 21:18:35	3472ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-17 22:35:36	893ms	2 NS 2 A 2 MX	🔓 Insecure	View