christianmarcussen.dk DNS records

🖥️ Nameservers2 records 134ms

Nameserver	IP addresses	PTR	ASN / ISP
robin.ns.cloudflare.com	108.162.192.218 172.64.32.218 173.245.58.218 2606:4700:50::adf5:3ada 2803:f800:50::6ca2:c0da 2a06:98c1:50::ac40:20da	robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tony.ns.cloudflare.com	108.162.193.240 172.64.33.240 173.245.59.240 2606:4700:58::adf5:3bf0 2803:f800:50::6ca2:c1f0 2a06:98c1:50::ac40:21f0	tony.ns.cloudflare.com tony.ns.cloudflare.com tony.ns.cloudflare.com tony.ns.cloudflare.com tony.ns.cloudflare.com tony.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 187ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.3.137	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.130.191	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 148ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)2 records 183ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:82bf	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:389	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 185ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.3.137,172.67.130.191 ech=AEX+DQBBIQAgACBjimrUsMjzpcIYkzLcgjUYxIh/3+BMvMceUlWfOWvSRAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:82bf,2606:4700:3037::6815:389

🔌 SRV Records1 records 215ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	1	443	maildiscover.simply.com

📝 TXT Records1 records 329ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF

Policy	Record (christianmarcussen.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.christianmarcussen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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

🔗 TLSA / DANE2 records 158ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC267ms

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	2409877073
Primary NS (MNAME)	robin.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

134ms

A

187ms

MX

148ms

AAAA

183ms

TXT

329ms

CAA

184ms

HTTPS

185ms

TLSA

158ms

SOA

0ms

MTA-STS

204ms

DNSSEC

267ms

SRV

215ms

Total

1446ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-18 20:29:54	1446ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-17 18:54:16	1396ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-28 07:03:01	937ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 20:41:54	413ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 20:40:50	564ms	2 NS 2 A 1 MX	🔓 Insecure	View