c-on.dk DNS records

🖥️ Nameservers5 records 45ms

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 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.139.219	3600s	web19.gigahost.dk	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records3 records 50ms

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	c-on.dk → 46.183.139.219
🔶 Autoconfig	c-on.dk → 46.183.139.219

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 103ms

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

📝 TXT Records2 records 271ms

TXT Record
spf2.0/pra
v=spf1 mx include:spf.gigahost.dk -all

✉️ SPF

Policy	Record (c-on.dk)
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC

Policy	Record (_dmarc.c-on.dk)
p=reject	v=DMARC1; p=reject;

📬 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.c-on.dk	c-on.dk

🔗 TLSA / DANE

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

🔐 DNSSEC2076ms

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	2026082701
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@c-on.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

45ms

A

63ms

MX

50ms

AAAA

52ms

TXT

271ms

CAA

178ms

HTTPS

51ms

TLSA

75ms

SOA

0ms

MTA-STS

221ms

DNSSEC

2076ms

SRV

103ms

Total

2760ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:32:20	2760ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-27 07:42:09	798ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-26 07:40:26	1047ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-21 01:13:24	3308ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-14 05:42:12	3947ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-08 07:05:47	8936ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-30 12:23:37	2153ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 17:41:19	1189ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-07-16 10:05:41	1083ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-07-11 15:42:36	17130ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-07-03 11:22:58	844ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-26 04:18:00	967ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-24 06:17:39	734ms	5 NS 1 A 3 MX	❓ Unknown	View
2026-06-18 16:14:39	1585ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-16 18:41:58	504ms	5 NS 1 A 3 MX	⚠️ Bogus	View
2026-06-16 18:40:37	1018ms	5 NS 1 A 3 MX	🔓 Insecure	View