28b.dk DNS records

🖥️ Nameservers2 records 30ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.191	3600s	webforward.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod14-cph3.one.com	185.10.9.212	mx1.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod14-cph3.one.com	185.10.9.213	mx2.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod14-cph3.one.com	185.10.9.214	mx3.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod14-cph3.one.com	185.10.9.215	mx4.pub.mailpod14-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	46.30.215.137
🔶 Autoconfig	46.30.215.137

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 172ms

TXT Record
v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (28b.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all

📨 DMARC

Policy	Record (_dmarc.28b.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 50ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…

🔐 DNSSEC56ms

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

🏷️ SOA23ms

Field	Value
Serial	2026070502
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

30ms

A

30ms

MX

30ms

AAAA

30ms

TXT

172ms

CAA

32ms

HTTPS

30ms

TLSA

50ms

SOA

23ms

MTA-STS

45ms

DNSSEC

56ms

SRV

46ms

Total

4840ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-24 22:34:39	4840ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 12:41:28	6750ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-07 02:35:43	1369ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-04 22:34:43	1043ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 03:23:15	3055ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 04:58:11	961ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 05:02:13	1775ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:56:32	2069ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:53:32	1836ms	2 NS 1 A 4 MX	🔒 Secure	View