gtko.dk DNS records

🖥️ Nameservers2 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.13	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.spamfilter.io	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.webexchange.nu → 46.36.209.50

🔷 AAAA Records (IPv6)1 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:6d:9bb9:9c3b:9aaa	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 226ms

TXT Record
v=spf1 include:spf.scannet.dk ?all include:_custspf.one.com ~all

✉️ SPF

Policy	Record (gtko.dk)
~all (soft fail)	v=spf1 include:spf.scannet.dk ?all include:_custspf.one.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

🔗 TLSA / DANE1 records 135ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.spamfilter.io	DANE-EE · SPKI · SHA-256	9A25F05F2E322DABDCC9B7A06AB47A2D…

🔐 DNSSEC145ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

57ms

A

46ms

MX

37ms

AAAA

39ms

TXT

226ms

CAA

51ms

HTTPS

47ms

TLSA

135ms

SOA

0ms

MTA-STS

60ms

DNSSEC

145ms

SRV

8073ms

Total

8933ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-21 19:08:54	8933ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 18:51:03	2060ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 03:31:09	24947ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 16:43:40	1254ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 01:16:47	1159ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 00:35:27	705ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 09:38:01	1161ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:08:59	5827ms	2 NS 1 A 1 MX	🔒 Secure	View