gtf.dk

📜 Historical scan 2026-06-17 10:41:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gtf.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 15 March 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.111 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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#

4 records 88ms

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 Records#

1 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.111	—	linux231.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 182ms

TXT Record
v=spf1 include:spf.simply.com ?all

✉️ SPF#

Policy	Record (gtf.dk)
?all (neutral)	v=spf1 include:spf.simply.com ?all

📨 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 2026-10-13 12:11:30

www	93.191.156.250 (AS48854) (address records, no CNAME)
www vs bare domain	Same network gtf.dk: 93.191.156.250 (AS48854) www.gtf.dk: 93.191.156.250 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
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: 1/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

99ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2020072990
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-01 10:41:53

Field	Value
Registrar	Simply.com A/S
Registered	2013-03-15
Expires	2027-03-31 (164d)

📋 WHOIS#

⏱️ Lookup Timing#

88ms

63ms

AAAA

43ms

TXT

182ms

CAA

59ms

HTTPS

45ms

TLSA

94ms

SOA

43ms

MTA-STS

87ms

DNSSEC

99ms

SRV

0ms

Total

600ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 12:11:30	1089ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 10:11:57	956ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-22 09:16:48	816ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-16 08:05:15	1255ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-01 22:22:33	1456ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-22 06:37:32	1944ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-21 06:27:07	4049ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-12 01:40:19	1016ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-17 10:48:45	493ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-17 10:41:01 shown	600ms	4 NS 1 A 0 MX	🔒 Secure