studysea.dk DNS records

🖥️ Nameservers2 records 119ms

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 2079ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.191	—	webforward.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 132ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	studysea-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::4 2a01:111:f403:ca09::6 2a01:111:f403:ca09::f 52.101.68.25 52.101.68.32 52.101.73.16 52.101.73.4	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 2242ms

TXT Record
google-site-verification=LtPnCK1hFchpESKz7JHhcvlXIbc1PwLS6bJULeOH9I4
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (studysea.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.studysea.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC250ms

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

🏷️ SOA125ms

Field	Value
Serial	2026060805
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

119ms

A

2079ms

MX

132ms

AAAA

126ms

TXT

2242ms

CAA

124ms

HTTPS

116ms

TLSA

191ms

SOA

125ms

MTA-STS

165ms

DNSSEC

250ms

SRV

0ms

Total

2941ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 23:38:24	5327ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 13:53:14	1251ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 22:44:54	5713ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 02:03:14	3381ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 16:15:51	3445ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 11:45:40	2941ms	2 NS 1 A 1 MX	🔒 Secure	View