rbf.dk

Records from scan: 2026-10-21 21:58:22 · 490ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rbf.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, uma.ns.cloudflare.com). It was registered on 18 April 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.184 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 26ms

Nameserver	IP addresses	PTR	ASN / ISP
jay.ns.cloudflare.com	108.162.193.123 172.64.33.123 173.245.59.123 2606:4700:58::adf5:3b7b 2803:f800:50::6ca2:c17b 2a06:98c1:50::ac40:217b	jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
uma.ns.cloudflare.com	108.162.192.146 172.64.32.146 173.245.58.146 2606:4700:50::adf5:3a92 2803:f800:50::6ca2:c092 2a06:98c1:50::ac40:2092	uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.ns.cloudflare.com uma.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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.93.184	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.182	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 30ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:d5b6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:5db8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 24ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.93.184,172.67.213.182 ech=AEX+DQBBZwAgACAXb7Z7ntaOv1ZZTt/BUXKf0cjZzd14q0HcDmX9PBaYPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:d5b6,2606:4700:3033::6815:5db8

📝 TXT Records#

1 records 137ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (rbf.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.rbf.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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#

checked 2026-10-21 21:58:22

www	104.21.93.184 172.67.213.182 2606:4700:3031::ac43:d5b6 2606:4700:3033::6815:5db8 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rbf.dk: 104.21.93.184 172.67.213.182 2606:4700:3031::ac43:d5b6 2606:4700:3033::6815:5db8 (AS13335) www.rbf.dk: 104.21.93.184 172.67.213.182 2606:4700:3031::ac43:d5b6 2606:4700:3033::6815:5db8 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

100ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2416582880
Primary NS (MNAME)	jay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 22:39:50

Field	Value
Registrar	Simply.com A/S
Registered	1996-04-18
Expires	2027-06-30 (251d)

📋 WHOIS#

⏱️ Lookup Timing#

26ms

30ms

31ms

AAAA

30ms

TXT

137ms

CAA

31ms

HTTPS

24ms

TLSA

43ms

SOA

34ms

MTA-STS

42ms

DNSSEC

100ms

SRV

43ms

Total

490ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 21:58:22 shown	490ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-04 22:21:30	591ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-19 21:39:39	1827ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 01:14:41	9797ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-18 13:39:13	778ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-22 04:25:59	4526ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 09:24:25	1160ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 15:02:06	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 17:41:01	776ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 19:42:40	790ms	2 NS 2 A 0 MX	🔓 Insecure