ct.dk DNS records

🖥️ Nameservers5 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	3600s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records3 records 207ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.gigahost.dk	46.183.139.11	mx1.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx2.gigahost.dk	46.183.139.12	mx2.gigahost.dk	AS47292 Sentia Denmark A/S
10	3600s	mx3.gigahost.dk	46.183.139.13	mx3.gigahost.dk	AS47292 Sentia Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	ct.dk → 46.183.138.100
🔶 Autoconfig	ct.dk → 46.183.138.100

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 1207ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.ct.dk	ct.dk

🔗 TLSA / DANE

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

🔐 DNSSEC108ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@ct.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

36ms

MX

207ms

AAAA

195ms

TXT

203ms

CAA

200ms

HTTPS

197ms

TLSA

314ms

SOA

0ms

MTA-STS

205ms

DNSSEC

108ms

SRV

1207ms

Total

2058ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-07 00:21:27	2058ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 09:27:42	9673ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 16:56:44	10199ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-13 21:07:04	2688ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-06 02:25:01	1319ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-01 12:36:53	1268ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 05:39:06	1274ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-16 02:14:55	9696ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-11 19:49:40	1181ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-03 13:27:02	1097ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-26 18:35:58	874ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-22 19:09:30	832ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-22 01:03:04	816ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-21 03:13:00	1694ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-16 23:06:17	991ms	5 NS 1 A 3 MX	🔓 Insecure	View