c3m.dk DNS records

🖥️ Nameservers5 records 46ms

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 48ms

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 48ms

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	c3m.dk → 46.183.138.100
🔶 Autoconfig	c3m.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 228ms

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

📝 TXT Records2 records 161ms

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

✉️ SPF

Policy	Record (c3m.dk)
-all (hard fail)	v=spf1 mx include:spf.gigahost.dk -all

📨 DMARC

Policy	Record (_dmarc.c3m.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.c3m.dk	c3m.dk

🔗 TLSA / DANE

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

🔐 DNSSEC116ms

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@c3m.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-08-20 18:54:50

Field	Value
Registrar	GIGAHOST ApS
Registered	2004-06-09
Expires	2027-06-30 (297d)

📋 WHOIS

⏱️ Lookup Timing

NS

46ms

A

48ms

MX

48ms

AAAA

185ms

TXT

161ms

CAA

40ms

HTTPS

40ms

TLSA

38ms

SOA

0ms

MTA-STS

284ms

DNSSEC

116ms

SRV

228ms

Total

687ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:32:06	687ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-26 20:45:14	1241ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-25 19:08:21	1472ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-20 18:54:37	7334ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-14 00:42:56	4143ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-09 20:30:07	1796ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-08-01 19:13:20	9929ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-23 17:02:18	1352ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-16 15:48:53	9843ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-10 08:17:54	1259ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-07-03 19:34:33	1896ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-28 15:04:03	946ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-26 02:47:07	903ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-18 12:11:53	1972ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-16 18:41:51	427ms	5 NS 1 A 3 MX	🔓 Insecure	View
2026-06-16 18:41:00	613ms	5 NS 1 A 3 MX	🔓 Insecure	View