4xs.dk DNS records

🖥️ Nameservers2 records 45ms

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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.130	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:11:87b3:2a61:948b	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 Records1 records 189ms

TXT Record
v=spf1 include:_custspf.one.com -all

✉️ SPF

Policy	Record (4xs.dk)
-all (hard fail)	v=spf1 include:_custspf.one.com -all

📨 DMARC

Policy	Record (_dmarc.4xs.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 161ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC98ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082511
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

45ms

A

52ms

MX

50ms

AAAA

44ms

TXT

189ms

CAA

47ms

HTTPS

44ms

TLSA

161ms

SOA

0ms

MTA-STS

78ms

DNSSEC

98ms

SRV

68ms

Total

1095ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 07:21:42	1095ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 20:48:39	622ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-23 01:52:18	1169ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-17 13:31:58	1179ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-31 16:39:03	1027ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-23 05:23:49	963ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-16 15:39:25	4773ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-28 00:33:52	1243ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-27 11:19:40	673ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-27 09:01:01	708ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-22 07:40:09	527ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-18 08:18:31	746ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-16 12:38:22	783ms	2 NS 1 A 3 MX	🔒 Secure	View