t-k.dk

📜 Historical scan 2026-09-25 03:28:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

t-k.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 8 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.107.251 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by tk-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.107.251	3600s	linux39.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tk-dk0c.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::c 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::a 52.101.103.39 52.101.68.12 52.101.68.25 52.101.91.21	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-matpr05cu00105.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

📝 TXT Records#

3 records 167ms

TXT Record
_oqlu3o7t1js0ms21d9v68ovuj9888i0
google-site-verification=yT_XB_fA6i5kPEZB8rwxXEBZMjqNN-F9cY-PVZlZpAA
v=spf1 include:spf.protection.outlook.com include:spf.mailjet.com include:spf.zoho.eu include:spf.simply.com ~all

✉️ SPF#

Policy	Record (t-k.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.mailjet.com include:spf.zoho.eu include:spf.simply.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#

latest probe, not this scan · checked 2026-10-17 06:37:51

www	94.231.107.251 (AS48854) (address records, no CNAME)
www vs bare domain	Same network t-k.dk: 94.231.107.251 (AS48854) www.t-k.dk: 94.231.107.251 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	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: 4/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.t-k.dk	_oqlu3o7t1js0ms21d9v68ovuj9888i0

🔗 TLSA / DANE#

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

🔐 DNSSEC#

113ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-17 07:08:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-03-08
Expires	2027-03-31 (163d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

42ms

33ms

AAAA

38ms

TXT

167ms

CAA

44ms

HTTPS

36ms

TLSA

253ms

SOA

0ms

MTA-STS

53ms

DNSSEC

113ms

SRV

63ms

Total

888ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 06:37:51	1757ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 06:01:41	1202ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 21:29:09	1281ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 17:06:11	3265ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 15:43:27	1095ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 11:29:08	1105ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 11:18:40	690ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 03:28:25 shown	888ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 03:10:26	1547ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 16:52:38	1294ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 00:18:11	1323ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 20:26:17	1222ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-08 03:54:29	33169ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-09 02:30:27	1063ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-30 12:22:47	1177ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 19:30:07	1094ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 02:26:56	890ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 00:44:20	938ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 13:50:24	840ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 07:58:50	859ms	2 NS 1 A 1 MX	🔒 Secure