tf-cbt.dk

📜 Historical scan 2026-06-18 09:16:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tf-cbt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 September 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, has no 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 156ms

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 144ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.135	—	webcluster1.webpod14-cph3.one.com	AS51468	—	—	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

1 records 199ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:38:2d44:9cdb:383f	—	—	AS51468	—	—	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-22 18:29:47

www	46.30.213.135 2a02:2350:5:10c:38:2d44:9cdb:383f (AS51468) (address records, no CNAME)
www vs bare domain	Same network tf-cbt.dk: 46.30.213.135 2a02:2350:5:10c:38:2d44:9cdb:383f (AS51468) www.tf-cbt.dk: 46.30.213.135 2a02:2350:5:10c:38:2d44:9cdb:383f (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

208ms

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

🏷️ SOA#

143ms

Field	Value
Serial	2026061701
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 2026-10-21 10:28:27

Field	Value
Registrar	ONE.COM A/S
Registered	2023-09-12
Expires	2027-09-11 (323d)

🔗 Same registrant#

2 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
sarahvoschero.dk	Punktum dk A/S (direct)
tfcbt.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

156ms

144ms

155ms

AAAA

199ms

TXT

273ms

CAA

146ms

HTTPS

139ms

TLSA

102ms

SOA

143ms

MTA-STS

150ms

DNSSEC

208ms

SRV

188ms

Total

716ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 18:29:47	374ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-21 10:02:42	1002ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-19 06:33:17	585ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 05:30:48	4458ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-18 11:38:27	438ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 20:02:24	2412ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 07:38:10	540ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-30 10:58:54	406ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 19:52:51	1209ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-18 18:22:41	6674ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 10:57:43	5285ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 19:18:26	732ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-30 23:14:04	999ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 09:16:45 shown	716ms	2 NS 1 A 0 MX	🔒 Secure