c3ntric.dk

📜 Historical scan 2026-06-19 14:16:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c3ntric.dk is a .dk domain served by 3 nameservers (ns1.combell.eu, ns3.combell.net, ns4.combell.net). It was registered on 24 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.21.190.139 is hosted by Combell NV (AS34762) in Belgium. Mail is handled by mx.mailprotect.be, mx.backup.mailprotect.be. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.combell.eu	2a00:1c98:50::50 89.44.166.48	— 89.44.166.48.static.hosted.by.combell-ops.net	AS34762 Combell NV AS34762 Combell NV
ns3.combell.net	2a00:1c98::53:1 83.217.73.172	ns3.combell.net ns3.combell.net	AS34762 Combell NV AS34762 Combell NV
ns4.combell.net	2001:1598:0:101::3 86.39.202.67	ns4.combell.net ns4.combell.net	AS28747 Easyhost BVBA AS28747 Easyhost BVBA

🌍 A Records#

1 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.21.190.139	3600s	217.21.190.139.static.hosted.by.combell.com	AS34762	Combell NV	217.21.176.0/20	🇧🇪 Belgium	—

📧 MX Records#

2 records 85ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.mailprotect.be	178.208.39.140 178.208.39.141 178.208.39.142 178.208.39.143	mx.mailprotect.be mx.mailprotect.be mx.mailprotect.be mx.mailprotect.be	AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV
50	3600s	mx.backup.mailprotect.be	178.208.39.140 178.208.39.141 178.208.39.142 178.208.39.143	mx.mailprotect.be mx.mailprotect.be mx.mailprotect.be mx.mailprotect.be	AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.mailprotect.be → 83.217.77.175
🔶 Autoconfig	autoconfig.mailprotect.be → 83.217.77.175

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 1328ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	1	1	443	autodiscover-s.mailprotect.be
_imaps._tcp	1	1	993	imap.mailprotect.be

📝 TXT Records#

1 records 345ms

TXT Record
v=spf1 mx a include:_spf.relay.mailprotect.be ~all

✉️ SPF#

Policy	Record (c3ntric.dk)
~all (soft fail)	v=spf1 mx a include:_spf.relay.mailprotect.be ~all

📨 DMARC#

Policy	Record (_dmarc.c3ntric.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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

211ms

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

🏷️ SOA#

101ms

Field	Value
Serial	1756990686
Primary NS (MNAME)	ns1.combell.eu
Responsible (RNAME)	hostmaster@c3ntric.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	40000s

📋 Registration#

WHOIS fetched 2026-10-05 18:04:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2025-09-24
Expires	2026-09-23 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

98ms

85ms

AAAA

96ms

TXT

345ms

CAA

78ms

HTTPS

103ms

TLSA

134ms

SOA

101ms

MTA-STS

256ms

DNSSEC

211ms

SRV

1328ms

Total

3394ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 04:13:11	163ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-20 19:30:46	175ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-19 17:02:30	95ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-18 16:01:23	209ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-17 14:37:56	357ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-16 13:27:53	96ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-15 13:00:05	112ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-14 12:20:59	231ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-13 10:17:05	284ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-12 05:37:15	100ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-11 04:08:19	337ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-10 02:57:28	244ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-08 23:16:16	283ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-07 23:14:21	228ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-06 22:51:40	211ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-05 21:11:38	215ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-04 21:07:53	244ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-03 21:04:03	130ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-02 21:02:32	181ms	1 NS 0 A 0 MX	❓ Unknown
2026-10-01 21:01:15	289ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-30 20:53:49	252ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-29 20:47:04	443ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-28 20:37:51	220ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-27 20:21:16	193ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-26 20:07:29	210ms	1 NS 0 A 0 MX	❓ Unknown