cls-c.dk DNS records

🖥️ Nameservers3 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.procopa.dk	185.237.124.225	ns01.procopa.dk	AS210939 Procopa IT ApS
ns02.procopa.dk	185.237.127.1 2a11:9700:400:2::2	ns02.procopa.dk ns02.procopa.dk	AS210939 Procopa IT ApS AS210939 Procopa IT ApS
ns05.procopa.dk	185.237.127.57 2a11:9700:1::4	ns05 ns05.procopa.dk	AS210939 Procopa IT ApS AS210939 Procopa IT ApS

🌍 A Records1 records 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.237.124.53	600s	linux01.hosting.procopa.dk	AS210939	Procopa IT ApS	185.237.124.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	clsc-dk0i.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::7 2a01:111:f403:ca09::8 2a01:111:f403:ca09::f 52.101.68.29 52.101.73.12 52.101.73.22 52.101.73.24	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 52.97.223.72

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 164ms

TXT Record
apple-domain-verification=MfAMD66wGUXccuXw
MS=ms50451016
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.cls-c.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; pct=100

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC63ms

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

🏷️ SOA50ms

Field	Value
Serial	1743166184
Primary NS (MNAME)	ns01.procopa.dk
Responsible (RNAME)	hostmaster@cls-c.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

76ms

MX

41ms

AAAA

36ms

TXT

164ms

CAA

44ms

HTTPS

33ms

TLSA

311ms

SOA

50ms

MTA-STS

38ms

DNSSEC

63ms

SRV

110ms

Total

740ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-20 03:27:01	740ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 01:58:47	697ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:26:15	678ms	3 NS 1 A 1 MX	🔓 Insecure	View