gtkj.dk

Records from scan: 2026-10-07 16:00:35 · 755ms total · last checked 2026-10-16 15:35 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gtkj.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 5 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.46.101 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.dns-123.net	35.198.132.83	83.132.198.35.bc.googleusercontent.com	AS396982 Google LLC
ns5.dns-123.net	35.187.184.173	173.184.187.35.bc.googleusercontent.com	AS396982 Google LLC
ns6.dns-123.net	35.228.54.1	1.54.228.35.bc.googleusercontent.com	AS396982 Google LLC

🌍 A Records#

1 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.46.101	7200s	server6101.serverpark.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Ringsted

📧 MX Records#

2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	7200s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	7200s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.103.46.101
🔶 Autoconfig	5.103.46.101

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 356ms

TXT Record
protonmail-verification=f09a039dacbb113d9b812e0833f8064b55c33c55
v=spf1 a mx include:_spf.serverpark.dk ~all
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (gtkj.dk)
~all (soft fail)	v=spf1 a mx include:_spf.serverpark.dk ~all
~all (soft fail)	v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

Policy	Record (_dmarc.gtkj.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-07 16:00:35

www	5.103.46.101 (AS44869) (address records, no CNAME)
www vs bare domain	Same network gtkj.dk: 5.103.46.101 (AS44869) www.gtkj.dk: 5.103.46.101 (AS44869)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

4 records 124ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…

🔐 DNSSEC#

91ms

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

🏷️ SOA#

50ms

Field	Value
Serial	2026030501
Primary NS (MNAME)	ns4.dns-123.net
Responsible (RNAME)	admin@dns-123.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-07 09:45:44

Field	Value
Registrar	INTERNET 123 ApS
Registered	2026-03-05
Expires	2027-03-04 (138d)

📋 WHOIS#

⏱️ Lookup Timing#

66ms

61ms

51ms

AAAA

52ms

TXT

356ms

CAA

56ms

HTTPS

67ms

TLSA

124ms

SOA

50ms

MTA-STS

105ms

DNSSEC

91ms

SRV

142ms

Total

755ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 16:00:35 shown	755ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-01 00:42:52	785ms	3 NS 1 A 2 MX	🔒 Secure
2026-09-28 00:02:59	9593ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-25 02:35:34	1154ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-20 06:50:50	2439ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-17 10:00:30	1023ms	3 NS 1 A 2 MX	🔒 Secure