4tr.dk DNS records

🖥️ Nameservers2 records 188ms

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 240ms

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 190ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod9-cph3.one.com	185.164.14.118	mx1.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod9-cph3.one.com	185.164.14.119	mx2.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod9-cph3.one.com	185.164.14.120	mx3.pub.mailpod9-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod9-cph3.one.com	185.164.14.124	mx4.pub.mailpod9-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 235ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:8018:804:7b15:8587	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 360ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx2.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx3.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…
SMTP _25._tcp.mx4.pub.mailpod9-cph3.one.com	DANE-EE · SPKI · SHA-256	45270A69B37BD0C454F2B3E54CC89AD7…

🔐 DNSSEC443ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082001
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

188ms

A

240ms

MX

190ms

AAAA

235ms

TXT

495ms

CAA

226ms

HTTPS

263ms

TLSA

360ms

SOA

0ms

MTA-STS

287ms

DNSSEC

443ms

SRV

248ms

Total

4589ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-20 23:22:07	4589ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-17 18:23:02	3460ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-21 18:51:27	2820ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 09:39:46	687ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-22 23:49:09	1019ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-18 10:05:14	2753ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:57:49	1612ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:57:44	1942ms	2 NS 1 A 4 MX	🔒 Secure	View