colt.dk

📜 Historical scan 2026-06-23 14:54:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

colt.dk is a .dk domain served by 2 nameservers (ns1.coltgroup.info, ns2.coltgroup.info). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 151.106.71.76 is hosted by PlusServer GmbH (AS61157) in Germany. Mail is handled by colt-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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#

2 records 155ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.coltgroup.info	134.0.30.178 2a03:2900:3:1::2	ns1.routing.net ns1.routing.net	AS48823 Hosting.de GmbH AS48823 Hosting.de GmbH
ns2.coltgroup.info	194.50.113.2 2001:4d8f:2::2	ns2.routing.net ns2.routing.net	AS41637 Hosting.de GmbH AS41637 Hosting.de GmbH

🌍 A Records#

1 records 189ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
151.106.71.76	21600s	ma5012788.psmanaged.com	AS61157	PlusServer GmbH	151.106.64.0/20	🇩🇪 Germany	—

📧 MX Records#

1 records 161ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	86400s	colt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca04::e 52.101.68.3 52.101.73.1 52.101.73.15 52.101.73.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 244ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 1286ms

TXT Record
MS=ms73484842
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (colt.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-09-30 18:26:00

www	Address record (no CNAME)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

173ms

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

🏷️ SOA#

115ms

Field	Value
Serial	2025012800
Primary NS (MNAME)	ns1.coltgroup.info
Responsible (RNAME)	hostmaster@colt.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	900s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

155ms

189ms

161ms

AAAA

97ms

TXT

1286ms

CAA

68ms

HTTPS

139ms

TLSA

130ms

SOA

115ms

MTA-STS

263ms

DNSSEC

173ms

SRV

244ms

Total

1826ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-28 11:50:44	3592ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 20:08:05	2640ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 14:54:31 shown	1826ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 14:31:30	1900ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 11:22:46	914ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 21:50:25	1074ms	2 NS 1 A 1 MX	🔓 Insecure