cosbar.dk DNS records

🖥️ Nameservers2 records 243ms

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 202ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.74	3600s	webcluster1.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 235ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 224ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:55:4471:249:4f9f	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 458ms

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

✉️ SPF

Policy	Record (cosbar.dk)
-all (hard fail)	v=spf1 include:spf.protection.example.com include:_custspf.one.com -all

📨 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 505ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…

🔐 DNSSEC381ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081604
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

243ms

A

202ms

MX

235ms

AAAA

224ms

TXT

458ms

CAA

216ms

HTTPS

229ms

TLSA

505ms

SOA

0ms

MTA-STS

270ms

DNSSEC

381ms

SRV

252ms

Total

2516ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-18 02:55:46	2516ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-14 19:18:51	1118ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 09:09:53	2759ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-02 17:53:43	833ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 11:16:56	1750ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-21 19:10:49	1183ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 20:29:21	1602ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 22:35:16	2269ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 22:31:34	753ms	2 NS 1 A 4 MX	🔒 Secure	View