studo.dk DNS records

🖥️ Nameservers2 records 23ms

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 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	3600s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records4 records 24ms

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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 99ms

TXT Record
google-site-verification=OFU8GtwsST4JHpobPkVorwsfSfGIlNu-u3wjBcczssg
stripe-verification=5f09da45d38d41272243b8b98f2bf0ef720499318a21f2b0af4c1f5d357b2843

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.studo.dk)
p=reject	v=DMARC1; p=reject

📬 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 56ms

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…

🔐 DNSSEC93ms

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

23ms

A

26ms

MX

24ms

AAAA

26ms

TXT

99ms

CAA

28ms

HTTPS

30ms

TLSA

56ms

SOA

0ms

MTA-STS

32ms

DNSSEC

93ms

SRV

30ms

Total

627ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 22:48:43	627ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-29 15:35:48	1114ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-20 04:10:34	6795ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 10:49:20	2613ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-29 12:01:43	2411ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-26 22:55:41	1404ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-25 18:24:06	864ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 08:41:17	4299ms	2 NS 1 A 4 MX	🔒 Secure	View