dadanet.dk DNS records

🖥️ Nameservers3 records 89ms

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 246ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.83	21600s	web01.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records1 records 90ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	38400s	dadanet-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::a 2a01:111:f403:ca04::e 2a01:111:f403:ca04::f 52.101.68.29 52.101.68.32 52.101.73.12 52.101.73.153	mail-db4pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.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 → 52.98.149.136

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 388ms

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

📝 TXT Records2 records 313ms

TXT Record
MS=ms88964775
v=spf1 a:web01.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (dadanet.dk)
-all (hard fail)	v=spf1 a:web01.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)

🔐 DNSSEC263ms

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

🏷️ SOA91ms

Field	Value
Serial	1574174117
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

89ms

A

246ms

MX

90ms

AAAA

271ms

TXT

313ms

CAA

173ms

HTTPS

417ms

TLSA

371ms

SOA

91ms

MTA-STS

157ms

DNSSEC

263ms

SRV

388ms

Total

1132ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-24 01:46:37	1132ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 06:41:22	2362ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-22 07:34:04	1194ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 17:42:10	2385ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 17:44:14	3162ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 23:36:05	2909ms	3 NS 1 A 1 MX	🔓 Insecure	View