3cbt.dk DNS records

🖥️ Nameservers2 records 93ms

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 Records1 records 130ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.99	3600s	webcluster2.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 111ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod12-cph3.one.com	104.37.34.246	mx1.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod12-cph3.one.com	104.37.34.247	mx2.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod12-cph3.one.com	104.37.34.248	mx3.pub.mailpod12-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod12-cph3.one.com	104.37.34.249	mx4.pub.mailpod12-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 122ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:801a:41e5:c4c7:a479	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

📝 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

🔗 TLSA / DANE4 records 242ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx2.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx3.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…
SMTP _25._tcp.mx4.pub.mailpod12-cph3.one.com	DANE-EE · SPKI · SHA-256	3E81C76D10E1A717F28178710EADCAA8…

🔐 DNSSEC350ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082902
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

93ms

A

130ms

MX

111ms

AAAA

122ms

TXT

385ms

CAA

157ms

HTTPS

130ms

TLSA

242ms

SOA

0ms

MTA-STS

182ms

DNSSEC

350ms

SRV

173ms

Total

3524ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 23:32:35	3524ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 13:51:55	1010ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-20 17:38:53	8876ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-21 01:51:35	2766ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-01 00:24:03	671ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 07:53:21	1788ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 04:33:20	4182ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 22:19:52	1164ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 01:16:10	735ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-20 04:29:50	8098ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 13:12:43	810ms	2 NS 1 A 4 MX	🔒 Secure	View