letbook.dk DNS records

🖥️ Nameservers2 records 269ms

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 181ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.134	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 293ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod10-cph3.one.com	104.37.34.70	mx1.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod10-cph3.one.com	104.37.34.71	mx2.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod10-cph3.one.com	104.37.34.72	mx3.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod10-cph3.one.com	104.37.34.73	mx4.pub.mailpod10-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	46.30.213.134
🔶 Autoconfig	46.30.213.134

🔷 AAAA Records (IPv6)1 records 305ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:37:bab8:2c65:f25e	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 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 365ms

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…

🔐 DNSSEC452ms

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

🏷️ SOA317ms

Field	Value
Serial	2026061602
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

269ms

A

181ms

MX

293ms

AAAA

305ms

TXT

588ms

CAA

300ms

HTTPS

285ms

TLSA

365ms

SOA

317ms

MTA-STS

264ms

DNSSEC

452ms

SRV

380ms

Total

2610ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:10:36	808ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-17 05:05:48	1066ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-15 18:06:09	1048ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-02 17:02:32	1899ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-21 18:04:39	614ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-21 06:29:52	2610ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 13:30:24	705ms	2 NS 1 A 4 MX	🔒 Secure	View