gbc72.dk

📜 Historical scan 2026-09-19 00:38:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gbc72.dk is a .dk domain served by 2 nameservers (duke.ns.cloudflare.com, kiki.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.88 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.klubmodul.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 46ms

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 Records#

2 records 31ms

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 Records#

1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.klubmodul.dk	109.71.60.28	mail.klubmodul.dk	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.148.179
🔶 Autoconfig	104.21.29.88

🔷 AAAA Records (IPv6)#

2 records 37ms

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 Records#

1 records 2045ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.88,172.67.148.179 ech=AEX+DQBBFwAgACAThpJsrvcoKO4NLPAHdg+EWp0L4nzNY35o2j7ye2CdDwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:1d58,2606:4700:3032::ac43:94b3

📝 TXT Records#

1 records 199ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 21:48:19

www	104.21.29.88 172.67.148.179 2606:4700:3032::6815:1d58 2606:4700:3032::ac43:94b3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gbc72.dk: 104.21.29.88 172.67.148.179 2606:4700:3032::6815:1d58 2606:4700:3032::ac43:94b3 (AS13335) www.gbc72.dk: 104.21.29.88 172.67.148.179 2606:4700:3032::6815:1d58 2606:4700:3032::ac43:94b3 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2066ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

46ms

31ms

47ms

AAAA

37ms

TXT

199ms

CAA

40ms

HTTPS

2045ms

TLSA

129ms

SOA

0ms

MTA-STS

58ms

DNSSEC

2066ms

SRV

76ms

Total

2538ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 19:31:10	523ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 13:11:41	2339ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 12:58:48	2192ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 00:38:51 shown	2538ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 11:46:57	1238ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 08:29:54	785ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 02:26:21	2546ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 17:25:46	2462ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 08:03:34	1666ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-28 10:57:37	702ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 09:33:30	1448ms	2 NS 1 A 1 MX	⚠️ Bogus