dtk.dk

Records from scan: 2026-09-23 19:52:50 · 1321ms total · last checked 2026-10-16 23:32 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dtk.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 18 December 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.92.65.137 is hosted by Datacenter Luxembourg S.A. (AS24611) in Luxembourg. Mail is handled by dtk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

4 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.92.65.137	3600s	80-92-65-137.ip.dclux.com	AS24611	Datacenter Luxembourg S.A.	80.92.64.0/19	🇱🇺 Luxembourg	Luxembourg

📧 MX Records#

1 records 64ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dtk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::e 2a01:111:f403:ca3c::8 2a01:111:f403:ca48::c 52.101.103.39 52.101.185.114 52.101.73.120 52.101.73.123	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 85ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 294ms

TXT Record
MS=ms38085102
v=spf1 ip4:31.209.188.114 ip4:193.104.43.14 ip4:194.239.235.17 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (dtk.dk)
-all (hard fail)	v=spf1 ip4:31.209.188.114 ip4:193.104.43.14 ip4:194.239.235.17 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.dtk.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 2026-10-09 01:08:05

www	80.92.65.137 (AS24611) (address records, no CNAME)
www vs bare domain	Same network dtk.dk: 80.92.65.137 (AS24611) www.dtk.dk: 80.92.65.137 (AS24611)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-dtk-dk._domainkey.dtkas.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-dtk-dk._domainkey.dtkas.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#

102ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026092204
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-10 19:00:55

Field	Value
Registrar	Eurodns S.A
Registered	1996-12-18
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

62ms

60ms

64ms

AAAA

63ms

TXT

294ms

CAA

65ms

HTTPS

62ms

TLSA

604ms

SOA

0ms

MTA-STS

84ms

DNSSEC

102ms

SRV

85ms

Total

1321ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 19:52:50 shown	1321ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-23 07:52:52	1499ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-20 05:22:42	2552ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-27 06:57:43	10504ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-26 13:18:22	2394ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 04:50:24	675ms	4 NS 1 A 1 MX	🔓 Insecure