duushildebrand.dk DNS records

🖥️ Nameservers3 records 45ms

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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
49.12.60.86	1200s	web.c-system.dk	AS24940	Hetzner Online GmbH	49.12.0.0/15	🇩🇪 Germany	—

📧 MX Records1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	38400s	duushildebrand-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 2a01:111:f403:ca09::6 52.101.73.1 52.101.73.12 52.101.73.15 52.101.73.24	mail-du2pr03cu00102.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 142ms

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

📝 TXT Records2 records 349ms

TXT Record
MS=ms33572494
v=spf1 a:web03.c-system.dk a:web01.c-system.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (duushildebrand.dk)
-all (hard fail)	v=spf1 a:web03.c-system.dk 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)

🔐 DNSSEC2072ms

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	1712324231
Primary NS (MNAME)	ns1.c-system.dk
Responsible (RNAME)	hostmaster@c-system.dk
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	38400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

50ms

MX

59ms

AAAA

52ms

TXT

349ms

CAA

64ms

HTTPS

63ms

TLSA

308ms

SOA

0ms

MTA-STS

98ms

DNSSEC

2072ms

SRV

142ms

Total

2990ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 23:13:13	2990ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-29 12:49:23	1362ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 05:06:00	1487ms	3 NS 1 A 1 MX	🔓 Insecure	View