57b.dk DNS records

🖥️ Nameservers2 records 76ms

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 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.72	3600s	webcluster1.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 78ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	195.249.40.164

🔷 AAAA Records (IPv6)1 records 80ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:44:b87c:57ec:e7f0	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 163ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC218ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
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

76ms

A

72ms

MX

78ms

AAAA

80ms

TXT

305ms

CAA

102ms

HTTPS

70ms

TLSA

163ms

SOA

0ms

MTA-STS

167ms

DNSSEC

218ms

SRV

155ms

Total

1198ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 23:31:30	1198ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 11:19:41	1110ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-25 02:29:01	2056ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-11 18:45:11	1074ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-30 00:21:31	865ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-12 18:30:05	5648ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-28 18:22:26	765ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 01:09:16	3139ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-22 14:13:05	919ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 02:49:27	665ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-19 22:56:05	2644ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:57:59	2041ms	2 NS 1 A 4 MX	🔒 Secure	View