gbc72.dk DNS records

🖥️ Nameservers2 records 62ms

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 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.88	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.148.179	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 87ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.klubmodul.dk	84.19.174.82	mail.klubmodul.dk	AS31103 Keyweb AG

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.29.88
🔶 Autoconfig	172.67.148.179

🔷 AAAA Records (IPv6)2 records 66ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:1d58	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:94b3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 77ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.88,172.67.148.179 ech=AEX+DQBBVAAgACDoxKLAIkAaIhaNMbgHH8jgCAtYlN3rXrrImfbxmjSvWwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:1d58,2606:4700:3032::ac43:94b3

📝 TXT Records1 records 233ms

TXT Record
v=spf1 mx a a:mail2.klubmodul.dk -all

✉️ SPF

Policy	Record (gbc72.dk)
-all (hard fail)	v=spf1 mx a a:mail2.klubmodul.dk -all

📨 DMARC

Policy	Record (_dmarc.gbc72.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@klubmodul.dk; ruf=mailto:dmarc@klubmodul.dk; fo=0:1; adkim=s; aspf=s

📬 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)

🔐 DNSSEC119ms

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	2410986977
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

62ms

A

58ms

MX

87ms

AAAA

66ms

TXT

233ms

CAA

73ms

HTTPS

77ms

TLSA

109ms

SOA

0ms

MTA-STS

93ms

DNSSEC

119ms

SRV

118ms

Total

785ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 08:29:54	785ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 02:26:21	2546ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-07 17:25:46	2462ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 08:03:34	1666ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-28 10:57:37	702ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 09:33:30	1448ms	2 NS 1 A 1 MX	⚠️ Bogus	View