cslearning.dk DNS records

🖥️ Nameservers2 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records1 records 40ms

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

📧 MX Records4 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx1.pub.mailpod10-cph3.one.com	104.37.34.70	mx1.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	—	mx2.pub.mailpod10-cph3.one.com	104.37.34.71	mx2.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	—	mx3.pub.mailpod10-cph3.one.com	104.37.34.72	mx3.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	—	mx4.pub.mailpod10-cph3.one.com	104.37.34.73	mx4.pub.mailpod10-cph3.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)1 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:66:9b51:2627:359d	—	—	AS51468	One.com A/S	2a02:2350::/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 52ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	411611ECE6466645A9E53512398A692D…
SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	411611ECE6466645A9E53512398A692D…
SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	411611ECE6466645A9E53512398A692D…
SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	411611ECE6466645A9E53512398A692D…

🔐 DNSSEC115ms

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

🏷️ SOA40ms

Field	Value
Serial	2026061401
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

40ms

MX

46ms

AAAA

45ms

TXT

2212ms

CAA

43ms

HTTPS

41ms

TLSA

52ms

SOA

40ms

MTA-STS

2071ms

DNSSEC

115ms

SRV

0ms

Total

2751ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 08:08:29	733ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 10:06:39	705ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-22 23:51:18	2265ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-14 18:31:21	997ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-14 17:46:30	2818ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 02:38:31	823ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 16:49:05	1053ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 01:51:04	1165ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-19 17:36:46	545ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 23:05:21	2751ms	2 NS 1 A 4 MX	🔒 Secure	View