krcommunications.dk DNS records

🖥️ Nameservers3 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.c-system.dk	49.12.60.90	ns1.c-system.dk	AS24940 Hetzner Online GmbH
ns2.c-system.dk	49.12.60.94	ns2.c-system.dk	AS24940 Hetzner Online GmbH
ns3.c-system.dk	37.27.223.112	monitor.itout.dk	AS24940 Hetzner Online GmbH

🌍 A Records1 records 110ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.230.93.185	21600s	lvps87-230-93-185.dedicated.hosteurope.de	AS8972	Host Europe GmbH	87.230.88.0/21	🇫🇷 France	Strasbourg

📧 MX Records1 records 123ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	21600s	krcommunications-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca04::e 2a01:111:f403:ca09::4 52.101.68.36 52.101.73.15 52.101.73.153 52.101.73.2	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 52.98.154.152

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 266ms

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

📝 TXT Records2 records 434ms

TXT Record
MS=ms93561784
v=spf1 a:mailgw1.c-system.dk a:mailgw2.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (krcommunications.dk)
-all (hard fail)	v=spf1 a:mailgw1.c-system.dk a:mailgw2.c-system.dk 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

🔗 TLSA / DANE

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

🔐 DNSSEC203ms

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

🏷️ SOA101ms

Field	Value
Serial	2018013102
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	admin@c-system.dk
Refresh	10800s
Retry	3600s
Expire	1309600s
Minimum (neg-cache TTL)	38400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

65ms

A

110ms

MX

123ms

AAAA

80ms

TXT

434ms

CAA

69ms

HTTPS

85ms

TLSA

152ms

SOA

101ms

MTA-STS

184ms

DNSSEC

203ms

SRV

266ms

Total

903ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-20 07:46:07	903ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 20:42:42	1465ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 19:41:40	3052ms	3 NS 1 A 1 MX	🔓 Insecure	View