t-dh.dk

Records from scan: 2026-09-29 23:39:26 · 708ms total · last checked 2026-10-16 21:49 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

t-dh.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 29 January 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 45.87.136.31 is hosted by 23M GmbH (AS47447) in Germany. Mail is handled by tdh-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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#

2 records 25ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
45.87.136.31	3600s	ms6059.mymanaged.host	AS47447	23M GmbH	45.87.136.0/23	🇩🇪 Germany	—

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tdh-dk0c.mail.protection.outlook.com	2a01:111:f403:ca09::a 2a01:111:f403:ca21::8 2a01:111:f403:ca21::a 2a01:111:f403:ca38::a 52.101.103.39 52.101.181.156 52.101.68.15 52.101.73.153	mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 113ms

TXT Record
MS=ms24289549
v=spf1 include:spf.jlhosting.dk include:spf.protection.outlook.com include:web.shared.mysmtp.com -all

✉️ SPF#

Policy	Record (t-dh.dk)
-all (hard fail)	v=spf1 include:spf.jlhosting.dk include:spf.protection.outlook.com include:web.shared.mysmtp.com -all

📨 DMARC#

Policy	Record (_dmarc.t-dh.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-12 17:05:26

www	45.87.136.31 (AS47447) (address records, no CNAME)
www vs bare domain	Same network t-dh.dk: 45.87.136.31 (AS47447) www.t-dh.dk: 45.87.136.31 (AS47447)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-tdh-dk0c._domainkey.dyrlaegerogko.onmicrosoft.com	RSA · ~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: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

52ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026060401
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-15 12:23:07

Field	Value
Registrar	CURANET A/S
Registered	2004-01-29
Expires	2027-01-31 (106d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

25ms

33ms

27ms

AAAA

33ms

TXT

113ms

CAA

28ms

HTTPS

30ms

TLSA

365ms

SOA

0ms

MTA-STS

34ms

DNSSEC

52ms

SRV

41ms

Total

708ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 23:39:26 shown	708ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 22:20:03	1628ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 22:26:25	2340ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 12:27:03	744ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 15:17:35	2806ms	2 NS 1 A 1 MX	🔒 Secure