gt3.dk

📜 Historical scan 2026-06-17 10:12:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gt3.dk is a .dk domain served by 2 nameservers (lochlan.ns.cloudflare.com, raquel.ns.cloudflare.com). It was registered on 19 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.13.87 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 1 more. The zone is DNSSEC-signed and validates, 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 109ms

Nameserver	IP addresses	PTR	ASN / ISP
lochlan.ns.cloudflare.com	108.162.195.234 162.159.44.234 172.64.35.234 2606:4700:58::a29f:2cea 2803:f800:50::6ca2:c3ea 2a06:98c1:50::ac40:23ea	lochlan.ns.cloudflare.com lochlan.ns.cloudflare.com lochlan.ns.cloudflare.com lochlan.ns.cloudflare.com lochlan.ns.cloudflare.com lochlan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
raquel.ns.cloudflare.com	108.162.194.210 162.159.38.210 172.64.34.210 2606:4700:50::a29f:26d2 2803:f800:50::6ca2:c2d2 2a06:98c1:50::ac40:22d2	raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.ns.cloudflare.com raquel.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 101ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.13.87	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.199.28	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 138ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
10	—	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
20	—	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S

🔷 AAAA Records (IPv6)#

2 records 97ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:c71c	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:d57	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 80ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.13.87,172.67.199.28 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c71c,2606:4700:3037::6815:d57

📝 TXT Records#

2 records 345ms

TXT Record
MS=ms27906047
v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (gt3.dk)
-all (hard fail)	v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.gt3.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-23 12:34:58

www	104.21.13.87 172.67.199.28 2606:4700:3034::ac43:c71c 2606:4700:3035::6815:d57 (AS13335) (address records, no CNAME)
www vs bare domain	Same network gt3.dk: 104.21.13.87 172.67.199.28 2606:4700:3034::ac43:c71c 2606:4700:3035::6815:d57 (AS13335) www.gt3.dk: 104.21.13.87 172.67.199.28 2606:4700:3034::ac43:c71c 2606:4700:3035::6815:d57 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 189ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…

🔐 DNSSEC#

285ms

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

🏷️ SOA#

82ms

Field	Value
Serial	2405963834
Primary NS (MNAME)	lochlan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-01 20:43:46

Field	Value
Registrar	CURANET A/S
Registered	2024-09-19
Expires	2027-09-18 (327d)

📋 WHOIS#

⏱️ Lookup Timing#

109ms

101ms

138ms

AAAA

97ms

TXT

345ms

CAA

77ms

HTTPS

80ms

TLSA

189ms

SOA

82ms

MTA-STS

109ms

DNSSEC

285ms

SRV

0ms

Total

4350ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 12:34:58	741ms	2 NS 2 A 3 MX	🔒 Secure
2026-10-21 22:04:22	727ms	2 NS 2 A 3 MX	🔒 Secure
2026-10-02 11:48:27	605ms	2 NS 2 A 3 MX	🔒 Secure
2026-10-01 20:38:01	1264ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-30 20:34:35	680ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-19 11:25:47	5185ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-16 17:42:17	2990ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-09 16:14:50	1630ms	2 NS 2 A 3 MX	🔒 Secure
2026-09-02 21:18:08	927ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-29 11:00:23	1241ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-28 08:14:50	968ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-27 00:11:31	792ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-22 02:20:21	14229ms	2 NS 2 A 3 MX	🔒 Secure
2026-08-15 21:27:35	1784ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-26 11:32:02	41309ms	2 NS 2 A 3 MX	🔒 Secure
2026-07-23 03:20:15	10454ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-30 17:03:39	1161ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-22 02:55:56	809ms	2 NS 2 A 3 MX	🔒 Secure
2026-06-17 10:12:32 shown	4350ms	2 NS 2 A 3 MX	🔒 Secure