sbk9300.dk DNS records

🖥️ Nameservers2 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
duke.ns.cloudflare.com	108.162.193.110 172.64.33.110 173.245.59.110 2606:4700:58::adf5:3b6e 2803:f800:50::6ca2:c16e 2a06:98c1:50::ac40:216e	duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com duke.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kiki.ns.cloudflare.com	108.162.192.180 172.64.32.180 173.245.58.180 2606:4700:50::adf5:3ab4 2803:f800:50::6ca2:c0b4 2a06:98c1:50::ac40:20b4	kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com kiki.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.44.108	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.198.189	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 39ms

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 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:2c6c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:c6bd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.44.108,172.67.198.189 ech=AEX+DQBB5wAgACBKC9LgE47IDtMgwi/5S/wQDb1stVYq6xxBs7MVqXYIZgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:2c6c,2606:4700:3035::ac43:c6bd

🔌 SRV Records1 records 74ms

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

📝 TXT Records1 records 185ms

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

✉️ SPF

Policy	Record (sbk9300.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.sbk9300.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 81ms

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

🔐 DNSSEC105ms

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	2412011496
Primary NS (MNAME)	duke.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

41ms

A

39ms

MX

39ms

AAAA

31ms

TXT

185ms

CAA

63ms

HTTPS

43ms

TLSA

81ms

SOA

0ms

MTA-STS

81ms

DNSSEC

105ms

SRV

74ms

Total

1201ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-13 19:38:53	1201ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-12 04:01:03	1281ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-16 09:15:20	1206ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 06:55:53	596ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 01:03:42	541ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 10:31:12	607ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 05:40:44	999ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 22:57:26	890ms	2 NS 2 A 1 MX	🔓 Insecure	View