gdt.dk

📜 Historical scan 2026-06-28 15:06:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gdt.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 4 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 174.138.15.41 is hosted by DigitalOcean, LLC (AS14061) in The Netherlands. 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 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#

3 records 33ms

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

🌍 A Records#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
174.138.15.41	3600s	1583260.cloudwaysapps.com	AS14061	DigitalOcean, LLC	174.138.0.0/17	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

5 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c1e::1b 64.233.161.27	lb-in-f27.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	173.194.43.27 2607:f8b0:400e:c1e::1b	yudlsqd-in-f27.1e100.net yudlsqd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 129ms

TXT Record
v=spf1 include:_spf.google.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (gdt.dk)
-all (hard fail)	v=spf1 include:_spf.google.com 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 2026-10-09 21:23:38

www	174.138.15.41 (AS14061) (address records, no CNAME)
www vs bare domain	Same network gdt.dk: 174.138.15.41 (AS14061) www.gdt.dk: 174.138.15.41 (AS14061)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

61ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2026032600
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 2026-10-18 02:03:12

Field	Value
Registrar	ONE.COM A/S
Registered	2025-03-04
Expires	2027-03-03 (135d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

33ms

28ms

38ms

AAAA

29ms

TXT

129ms

CAA

28ms

HTTPS

25ms

TLSA

79ms

SOA

32ms

MTA-STS

38ms

DNSSEC

61ms

SRV

32ms

Total

746ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 13:14:27	9450ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-27 10:51:57	624ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-20 06:22:54	760ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-16 07:39:06	664ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-09 01:33:05	2341ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-06 05:40:24	1173ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-28 15:06:14 shown	746ms	3 NS 1 A 5 MX	🔓 Insecure
2026-06-17 09:18:58	1443ms	3 NS 1 A 5 MX	🔓 Insecure