rbo.dk

📜 Historical scan 2026-09-24 23:34:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rbo.dk is a .dk domain served by 2 nameservers (guy.ns.cloudflare.com, tiffany.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.37.206 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod9-cph3.one.com, mx2.pub.mailpod9-cph3.one.com and 2 more. 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 38ms

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 Records#

2 records 62ms

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 Records#

4 records 59ms

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 35ms

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 Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.37.206,172.67.212.232 ech=AEX+DQBB6QAgACBCpBJAFSKVK2UrRhz4bGmPXPDbdxLg+jI59Bvqbl0VPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 12:21:58

www	104.21.37.206 172.67.212.232 2606:4700:3034::ac43:d4e8 2606:4700:3035::6815:25ce (AS13335) (address records, no CNAME)
www vs bare domain	Same network rbo.dk: 104.21.37.206 172.67.212.232 2606:4700:3034::ac43:d4e8 2606:4700:3035::6815:25ce (AS13335) www.rbo.dk: 104.21.37.206 172.67.212.232 2606:4700:3034::ac43:d4e8 2606:4700:3035::6815:25ce (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rbo.dk	9QXRwFBI_bNtlOz1mr5nVRxILF_R1AnQO-qokSLubsk
TXT	_acme-challenge.rbo.dk	EbalDOjwaxuh3iSzQSTMQyQVO91w6p-snERsMTdiNGE

🔗 TLSA / DANE#

8 records 86ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	0FA6D8D3ECDA7F79ECCF336F77E0484A…
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.mx2.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	0FA6D8D3ECDA7F79ECCF336F77E0484A…
SMTP _25._tcp.mx3.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	0FA6D8D3ECDA7F79ECCF336F77E0484A…
SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	0FA6D8D3ECDA7F79ECCF336F77E0484A…
SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…

🔐 DNSSEC#

69ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415662177
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

38ms

62ms

59ms

AAAA

35ms

TXT

211ms

CAA

45ms

HTTPS

42ms

TLSA

86ms

SOA

0ms

MTA-STS

70ms

DNSSEC

69ms

SRV

1180ms

Total

1727ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 01:31:08	915ms	2 NS 2 A 4 MX	🔓 Insecure
2026-10-01 01:10:07	2681ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-25 23:53:05	1561ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-24 23:34:25 shown	1727ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-23 17:55:26	843ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-30 00:53:15	687ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-25 05:46:37	4590ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-01 12:10:21	734ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-25 07:57:17	715ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-18 03:53:16	850ms	2 NS 1 A 4 MX	🔒 Secure