tdcsecure01.dk DNS records

🖥️ Nameservers4 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-37.azure-dns.com	150.171.10.37 2603:1061:0:10::25	ns1-37.azure-dns.com ns1-37.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-37.azure-dns.net	150.171.16.37 2620:1ec:8ec:10::25	ns2-37.azure-dns.net ns2-37.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-37.azure-dns.org	13.107.222.37 2a01:111:4000:10::25	ns3-37.azure-dns.org ns3-37.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-37.azure-dns.info	13.107.206.37 2620:1ec:bda:10::25	ns4-37.azure-dns.info ns4-37.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records

🌍

No A records found

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tdcsecure01-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::2 2a01:111:f403:ca09::7 2a01:111:f403:ca09::f 52.101.68.16 52.101.68.3 52.101.73.153 52.101.73.4	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.101.27.80

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 253ms

TXT Record
apple-domain-verification=Sc3ytGbpabBzaZgv
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (tdcsecure01.dk)
-all (hard fail)	v=spf1 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)

🔐 DNSSEC108ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'tdcsecure01.dk/DS/IN': 127.0.0.1#53

🏷️ SOA55ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1-37.azure-dns.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

62ms

A

39ms

MX

56ms

AAAA

68ms

TXT

253ms

CAA

63ms

HTTPS

32ms

TLSA

443ms

SOA

55ms

MTA-STS

71ms

DNSSEC

108ms

SRV

192ms

Total

1213ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-24 10:04:29	1213ms	4 NS 0 A 1 MX	❓ Unknown	View
2026-06-20 19:22:49	1138ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:32:12	2870ms	4 NS 0 A 1 MX	🔓 Insecure	View