rdff.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ashley.ns.cloudflare.com	108.162.192.71 172.64.32.71 173.245.58.71 2606:4700:50::adf5:3a47 2803:f800:50::6ca2:c047 2a06:98c1:50::ac40:2047	ashley.ns.cloudflare.com ashley.ns.cloudflare.com ashley.ns.cloudflare.com ashley.ns.cloudflare.com ashley.ns.cloudflare.com ashley.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
donald.ns.cloudflare.com	108.162.193.158 172.64.33.158 173.245.59.158 2606:4700:58::adf5:3b9e 2803:f800:50::6ca2:c19e 2a06:98c1:50::ac40:219e	donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.38.26	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.218.31	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
20	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
22	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
60	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.218.31
🔶 Autoconfig	104.21.38.26

🔷 AAAA Records (IPv6)2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:261a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:da1f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.38.26,172.67.218.31 ech=AEX+DQBBawAgACAlqh8w/uLZKf7J65iNHYNnBIRbkc2pDrPvB/j5ugm0RAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:261a,2606:4700:3035::ac43:da1f

📝 TXT Records3 records 463ms

TXT Record
google-site-verification=92kZeFaZmtyb04fCYmbT7QLT1Ans5vKWWzEYVwAQ0S0
google-site-verification=EJNvhOZQ-ZMvxap6Au7-aF1SVeunVvVZ0-LFHWXmGHk
v=spf1 include:_spf.mx.cloudflare.net a mx include:_spf.mlsend.com ~all

✉️ SPF

Policy	Record (rdff.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net a mx include:_spf.mlsend.com ~all

📨 DMARC

Policy	Record (_dmarc.rdff.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email

📬 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
CNAME	_acme-challenge.rdff.dk	1f789fd3-8828-4ab4-ab28-a13cea55d24b.auth.acme-challenge.dk

🔗 TLSA / DANE9 records 65ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…

🔐 DNSSEC103ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2407602710
Primary NS (MNAME)	ashley.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

40ms

A

33ms

MX

50ms

AAAA

34ms

TXT

463ms

CAA

24ms

HTTPS

44ms

TLSA

65ms

SOA

0ms

MTA-STS

48ms

DNSSEC

103ms

SRV

65ms

Total

1379ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 12:47:02	1135ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-30 04:22:57	1719ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-12 16:50:30	41840ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-08-10 03:58:53	7556ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-16 10:44:06	2215ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-07-15 08:13:10	2156ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-25 00:57:22	1379ms	2 NS 2 A 3 MX	🔒 Secure	View
2026-06-18 00:37:06	1489ms	2 NS 2 A 3 MX	🔒 Secure	View