c-olsen.dk DNS records

🖥️ Nameservers2 records 50ms

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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.19.232.44	3600s	—	AS47292	Sentia Denmark A/S	81.19.224.0/20	🇩🇰 Denmark	Albertslund

📧 MX Records4 records 37ms

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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	81.19.232.44
🔶 Autoconfig	81.19.232.44

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 197ms

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

✉️ SPF

Policy	Record (c-olsen.dk)
~all (soft fail)	v=spf1 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 247ms

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…

🔐 DNSSEC82ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082005
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

50ms

A

42ms

MX

37ms

AAAA

45ms

TXT

197ms

CAA

29ms

HTTPS

44ms

TLSA

247ms

SOA

0ms

MTA-STS

64ms

DNSSEC

82ms

SRV

67ms

Total

1094ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 17:33:32	1094ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-20 15:04:05	7077ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-04 09:54:26	1099ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-27 13:13:30	41289ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 20:11:54	6448ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-30 01:20:33	960ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-28 19:25:07	695ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 04:13:03	1863ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 20:02:37	1562ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-20 20:53:51	2810ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 18:49:41	507ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 18:40:09	670ms	2 NS 1 A 4 MX	🔒 Secure	View