t-data.dk

📜 Historical scan 2026-10-21 08:17:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

t-data.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 June 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.145 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by tdata-dk0c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 29ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.145	3600s	webcluster1.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	600s	tdata-dk0c.mail.protection.outlook.com	2a01:111:f403:ca21::a 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::10 2a01:111:f403:ca48::12 52.101.103.140 52.101.185.114 52.101.209.153 52.101.91.162	mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00302.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)#

1 records 36ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:8d:ca01:3f81:f17e	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 54ms

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

📝 TXT Records#

1 records 155ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (t-data.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.t-data.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-24 14:05:34

www	46.30.215.145 2a02:2350:5:106:8d:ca01:3f81:f17e (AS51468) (address records, no CNAME)
www vs bare domain	Same network t-data.dk: 46.30.215.145 2a02:2350:5:106:8d:ca01:3f81:f17e (AS51468) www.t-data.dk: 46.30.215.145 2a02:2350:5:106:8d:ca01:3f81:f17e (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-tdata-dk0c._domainkey.unidk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-tdata-dk0c._domainkey.unidk.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#

50ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2026102003
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 2026-10-24 14:23:16

Field	Value
Registrar	ONE.COM A/S
Registered	2009-06-18
Expires	2027-06-30 (248d)

🔗 Same registrant#

16 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).

Domain	Registrar
easyphone.dk	ONE.COM A/S
fanikke.dk	Punktum dk A/S (direct)
fannike.dk	ONE.COM A/S
fannikke.dk	ONE.COM A/S
fannikkes.dk	ONE.COM A/S
køkkenkraft.dk	ONE.COM A/S
onenumber.dk	Punktum dk A/S (direct)
sip01.dk	Punktum dk A/S (direct)
smtpgateway.dk	ONE.COM A/S
telecenter-bornholm.dk	Punktum dk A/S (direct)
telefonafdelingen.dk	Punktum dk A/S (direct)
unibackup.dk	Punktum dk A/S (direct)
unicom-fannikke.dk	ONE.COM A/S
unicom-x.dk	Punktum dk A/S (direct)
unicom.dk	Punktum dk A/S (direct)
xint.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

37ms

38ms

AAAA

36ms

TXT

155ms

CAA

36ms

HTTPS

42ms

TLSA

948ms

SOA

33ms

MTA-STS

137ms

DNSSEC

50ms

SRV

54ms

Total

1331ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-24 14:05:34	1764ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-21 08:17:19 shown	1331ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 15:11:53	1098ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 04:09:57	5450ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 00:43:26	7240ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-30 00:26:42	2596ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-29 15:43:28	11200ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-27 02:55:14	6378ms	4 NS 0 A 0 MX	🔓 Insecure
2026-07-21 18:22:44	8497ms	4 NS 0 A 0 MX	🔓 Insecure
2026-06-24 20:01:29	2905ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-17 23:04:19	4238ms	4 NS 0 A 1 MX	🔓 Insecure