rbk.dk

📜 Historical scan 2026-06-17 22:35:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rbk.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was registered on 27 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.23.198 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.dandomain.dk, mx2.dandomain.dk. The zone is not DNSSEC-signed, has no 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 32ms

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 Records#

2 records 36ms

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

📧 MX Records#

2 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S
20	—	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 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:17c6	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:d538	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.198,172.67.213.56 ech=AEX+DQBBnAAgACBeRsiogButg1cXG+B47GvAtSqi3Ug1C0cFugeMjxDaMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:17c6,2606:4700:3037::ac43:d538

📝 TXT Records#

1 records 178ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 00:16:34

www	104.21.23.198 172.67.213.56 2606:4700:3032::6815:17c6 2606:4700:3036::ac43:d538 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rbk.dk: 104.21.23.198 172.67.213.56 2606:4700:3032::6815:17c6 2606:4700:3036::ac43:d538 (AS13335) www.rbk.dk: 104.21.23.198 172.67.213.56 2606:4700:3032::6815:17c6 2606:4700:3036::ac43:d538 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

75ms

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

🏷️ SOA#

71ms

Field	Value
Serial	2407131018
Primary NS (MNAME)	duke.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 13:19:53

Field	Value
Registrar	DANDOMAIN A/S
Registered	2004-08-27
Expires	2027-08-31 (315d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

36ms

AAAA

36ms

TXT

178ms

CAA

37ms

HTTPS

32ms

TLSA

142ms

SOA

71ms

MTA-STS

51ms

DNSSEC

75ms

SRV

73ms

Total

893ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 00:16:34	1670ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 14:00:41	842ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 02:41:41	551ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-24 04:14:47	539ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-07 14:17:57	656ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-30 23:01:14	529ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 17:23:58	519ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-26 17:17:39	939ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-15 17:19:30	1401ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-20 14:23:19	9135ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-18 21:18:35	3472ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 22:35:36 shown	893ms	2 NS 2 A 2 MX	🔓 Insecure