gsfb.dk

📜 Historical scan 2026-08-09 21:23:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gsfb.dk is a .dk domain served by 2 nameservers (lex.ns.cloudflare.com, treasure.ns.cloudflare.com). It was registered on 11 May 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.42.189 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no 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 191ms

Nameserver	IP addresses	PTR	ASN / ISP
lex.ns.cloudflare.com	108.162.193.196 172.64.33.196 173.245.59.196 2606:4700:58::adf5:3bc4 2803:f800:50::6ca2:c1c4 2a06:98c1:50::ac40:21c4	lex.ns.cloudflare.com lex.ns.cloudflare.com lex.ns.cloudflare.com lex.ns.cloudflare.com lex.ns.cloudflare.com lex.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
treasure.ns.cloudflare.com	108.162.194.116 162.159.38.116 172.64.34.116 2606:4700:50::a29f:2674 2803:f800:50::6ca2:c274 2a06:98c1:50::ac40:2274	treasure.ns.cloudflare.com treasure.ns.cloudflare.com treasure.ns.cloudflare.com treasure.ns.cloudflare.com treasure.ns.cloudflare.com treasure.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 233ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.42.189	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.208.95	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 199ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	aspmx.l.google.com	142.251.127.27 2a00:1450:400c:c07::1b 2a00:1450:400c:c07::1b	lcfrai-in-f27.1e100.net wo-in-x1b.1e100.net wo-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt1.aspmx.l.google.com	192.178.213.27 2a00:1450:4025:c01::1b	yugrqzs-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt2.aspmx.l.google.com	142.251.127.26 2a00:1450:4001:c21::1a	lcfrai-in-f26.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
15	300s	alt3.aspmx.l.google.com	192.178.211.26 2a00:1450:4025:4401::1a	lcbomp-in-f26.1e100.net yuskedq-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
15	300s	alt4.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 201ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d05f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:2abd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 235ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.42.189,172.67.208.95 ech=AEX+DQBBvAAgACA1UsApBhY4hFRdFmCV9+Dh/QCIyj0gkEpKxyrj2R41AAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d05f,2606:4700:3037::6815:2abd

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-12 16:43:11

www	104.21.42.189 172.67.208.95 2606:4700:3030::ac43:d05f 2606:4700:3037::6815:2abd (AS13335) (address records, no CNAME)
www vs bare domain	Same network gsfb.dk: 104.21.42.189 172.67.208.95 2606:4700:3030::ac43:d05f 2606:4700:3037::6815:2abd (AS13335) www.gsfb.dk: 104.21.42.189 172.67.208.95 2606:4700:3030::ac43:d05f 2606:4700:3037::6815:2abd (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

527ms

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	2411547997
Primary NS (MNAME)	lex.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 07:50:48

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-05-11
Expires	2027-05-31 (224d)

📋 WHOIS#

⏱️ Lookup Timing#

191ms

233ms

199ms

AAAA

201ms

TXT

689ms

CAA

242ms

HTTPS

235ms

TLSA

344ms

SOA

0ms

MTA-STS

298ms

DNSSEC

527ms

SRV

325ms

Total

4199ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 08:00:07	866ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-05 07:48:52	721ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 07:20:51	837ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-25 03:40:53	935ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-05 14:05:46	1417ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-29 17:12:18	2385ms	2 NS 2 A 6 MX	🔓 Insecure
2026-08-28 05:35:25	1135ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-22 05:02:39	8669ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-09 21:23:31 shown	4199ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 03:55:26	1097ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-26 22:58:06	2456ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 23:55:31	2542ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 17:09:21	1100ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 10:05:34	5394ms	2 NS 2 A 5 MX	🔓 Insecure