cyn.dk DNS records

🖥️ Nameservers4 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.98	600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—

📧 MX Records1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cyn.dk.mx.one.com	104.37.34.246 104.37.34.247 104.37.34.248 104.37.34.249	mx1.pub.mailpod12-cph3.one.com mx2.pub.mailpod12-cph3.one.com mx3.pub.mailpod12-cph3.one.com mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S AS51468 One.com A/S AS51468 One.com A/S AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	162.159.140.98
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 63ms

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

📝 TXT Records1 records 134ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.cyn.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 / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC91ms

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

🏷️ SOA0ms

Field	Value
Serial	2026062601
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

42ms

MX

46ms

AAAA

38ms

TXT

134ms

CAA

38ms

HTTPS

44ms

TLSA

78ms

SOA

0ms

MTA-STS

68ms

DNSSEC

91ms

SRV

63ms

Total

670ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 09:41:50	670ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 03:20:43	1209ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 06:05:29	1151ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 23:53:57	1735ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 23:30:47	2538ms	4 NS 1 A 1 MX	🔒 Secure	View