thekerstryhn.dk DNS records

🖥️ Nameservers3 records 54ms

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 69ms

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	thekerstryhn-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::4 2a01:111:f403:ca09::8 2a01:111:f403:ca09::d 52.101.103.140 52.101.68.15 52.101.68.25 52.101.68.36	mail-du0pr03cu00102.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db5pr02cu00104.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 144ms

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

📝 TXT Records2 records 366ms

TXT Record
MS=ms10135781
v=spf1 a mx include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (thekerstryhn.dk)
-all (hard fail)	v=spf1 a mx 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)

🔐 DNSSEC126ms

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	2016060707
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

54ms

A

69ms

MX

57ms

AAAA

59ms

TXT

366ms

CAA

55ms

HTTPS

58ms

TLSA

568ms

SOA

0ms

MTA-STS

98ms

DNSSEC

126ms

SRV

144ms

Total

1509ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 16:00:51	1509ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-02 16:05:51	2160ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-27 13:12:58	2984ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 10:19:50	1341ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 15:16:43	928ms	3 NS 1 A 1 MX	🔓 Insecure	View