rbo.dk DNS records

🖥️ Nameservers2 records 33ms

Nameserver	IP addresses	PTR	ASN / ISP
guy.ns.cloudflare.com	108.162.193.173 172.64.33.173 173.245.59.173 2606:4700:58::adf5:3bad 2803:f800:50::6ca2:c1ad 2a06:98c1:50::ac40:21ad	guy.ns.cloudflare.com guy.ns.cloudflare.com guy.ns.cloudflare.com guy.ns.cloudflare.com guy.ns.cloudflare.com guy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tiffany.ns.cloudflare.com	108.162.194.60 162.159.38.60 172.64.34.60 2606:4700:50::a29f:263c 2803:f800:50::6ca2:c23c 2a06:98c1:50::ac40:223c	tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com tiffany.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.37.206	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.212.232	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records4 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod9-cph3.one.com	185.164.14.118	mx1.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod9-cph3.one.com	185.164.14.119	mx2.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod9-cph3.one.com	185.164.14.120	mx3.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	300s	mx4.pub.mailpod9-cph3.one.com	185.164.14.124	mx4.pub.mailpod9-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)2 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:d4e8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:25ce	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 27ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.37.206,172.67.212.232 ech=AEX+DQBBtgAgACCWhQ4QeqIZU///JrIG1CRzV2gmfVlCUWMCOnvLXUaSIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:d4e8,2606:4700:3035::6815:25ce

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.rbo.dk	8QyRofR1Mhyjpfl03nlKdwyHtWKrm_DymQ6fBScVKpI
TXT	_acme-challenge.rbo.dk	bqwuoIbyR1mY7hgJuU72coiMC7J4wXgbfbtK4qPdAnw

🔗 TLSA / DANE4 records 69ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…

🔐 DNSSEC98ms

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	2413490383
Primary NS (MNAME)	guy.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

33ms

A

27ms

MX

29ms

AAAA

33ms

TXT

134ms

CAA

30ms

HTTPS

27ms

TLSA

69ms

SOA

0ms

MTA-STS

41ms

DNSSEC

98ms

SRV

46ms

Total

687ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 00:53:15	687ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-08-25 05:46:37	4590ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-01 12:10:21	734ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 07:57:17	715ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-18 03:53:16	850ms	2 NS 1 A 4 MX	🔒 Secure	View