3rd.dk

Records from scan: 2026-10-26 01:38:53 · 592ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3rd.dk is a .dk domain served by 4 nameservers (ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and 1 more). It was registered on 22 October 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by 3rd-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 22ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	3rd-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca09::a 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 52.101.103.140 52.101.185.24 52.101.209.31 52.101.68.21	mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db4pr02cu00205.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 Records#

1 records 49ms

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

📝 TXT Records#

2 records 130ms

TXT Record
mscid=7h03wAZ+8Z7XkF44cUv/D4HiLQtky759SP88CT+kfsVVB+liTwPebzO3P7SMy2Kmz9tikoT6fzxxceK6G3o0Rw==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (3rd.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

🧩 Web & zone#

checked 2026-10-26 01:38:53

www	NXDOMAIN
www vs bare domain	Neither resolves 3rd.dk: no address www.3rd.dk: no address
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-3rd-dk._domainkey.3rddk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

100ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

42ms

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

📋 Registration#

WHOIS fetched 2026-10-10 14:26:42

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-10-22
Expires	2026-10-31 (4d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

25ms

22ms

AAAA

30ms

TXT

130ms

CAA

21ms

HTTPS

32ms

TLSA

55ms

SOA

42ms

MTA-STS

44ms

DNSSEC

100ms

SRV

49ms

Total

592ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-26 01:38:53 shown	592ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-08 06:45:48	1147ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-28 20:01:28	1014ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-26 22:26:47	833ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-22 03:46:04	1298ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-16 12:50:47	1294ms	4 NS 0 A 1 MX	🔓 Insecure