dsternen.dk DNS records

🖥️ Nameservers3 records 69ms

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 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.83	38400s	web01.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	38400s	dsternen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::8 2a01:111:f403:ca09::4 2a01:111:f403:ca48::8 52.101.68.3 52.101.73.11 52.101.73.126 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am7pr05cu00204.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 Records1 records 112ms

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

📝 TXT Records3 records 387ms

TXT Record
apple-domain-verification=G5zhLh6aDiMR2iun
google-site-verification=rvOX83hRK037B1Jb53pun-0bn9f0COSQ7Ch0ULj6Fcc
v=spf1 a mx a:web01.c-system.dk a:web03.c-system.dk ip4:93.161.88.19 ip4:93.161.90.83 ip4:185.158.61.23 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all

✉️ SPF

Policy	Record (dsternen.dk)
-all (hard fail)	v=spf1 a mx a:web01.c-system.dk a:web03.c-system.dk ip4:93.161.88.19 ip4:93.161.90.83 ip4:185.158.61.23 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all

📨 DMARC

Policy	Record (_dmarc.dsternen.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

🔗 TLSA / DANE

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

🔐 DNSSEC94ms

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	1583317956
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	hostmaster@c-system.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	38400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

69ms

A

67ms

MX

57ms

AAAA

66ms

TXT

387ms

CAA

63ms

HTTPS

69ms

TLSA

620ms

SOA

0ms

MTA-STS

92ms

DNSSEC

94ms

SRV

112ms

Total

1437ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 08:27:23	1437ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-08-06 14:49:58	1815ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 23:30:57	1718ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 04:50:43	1795ms	3 NS 1 A 1 MX	❓ Unknown	View