head9x.dk DNS records

🖥️ Nameservers4 records 90ms

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 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2.110.196.59	3600s	—	AS203953	Hiper A/S	2.110.128.0/17	🇩🇰 Denmark	Esbjerg

📧 MX Records1 records 84ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	mail.head9x.dk	157.180.39.122 2a01:4f9:c013:508::1	mail.head9x.dk mail.head9x.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	mail.head9x.dk → 157.180.39.122
🔶 Autoconfig	mail.head9x.dk → 157.180.39.122

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 125ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	mail.head9x.dk

📝 TXT Records1 records 245ms

TXT Record
v=spf1 ip4:157.180.39.122 ip6:2a01:4f9:c013:508::1 -all

✉️ SPF

Policy	Record (head9x.dk)
-all (hard fail)	v=spf1 ip4:157.180.39.122 ip6:2a01:4f9:c013:508::1 -all

📨 DMARC

Policy	Record (_dmarc.head9x.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@head9x.dk; ruf=mailto:dmarc@head9x.dk; fo=0; adkim=r; aspf=r; rf=afrf; sp=quarantine

📬 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 / DANE1 records 134ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.head9x.dk	DANE-EE · SPKI · SHA-256	C905F646DC74460886D9387A2856E872…

🔐 DNSSEC200ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
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

90ms

A

94ms

MX

84ms

AAAA

68ms

TXT

245ms

CAA

108ms

HTTPS

57ms

TLSA

134ms

SOA

0ms

MTA-STS

113ms

DNSSEC

200ms

SRV

125ms

Total

1382ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 19:49:50	1382ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 14:56:40	862ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 06:17:07	1027ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 19:04:06	4636ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-28 02:22:27	942ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 10:55:50	991ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 17:22:58	823ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 02:01:10	955ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:05:31	888ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 11:02:37	751ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:54:02	1432ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:53:48	1625ms	4 NS 1 A 1 MX	🔒 Secure	View