studysea.dk

📜 Historical scan 2026-06-19 16:15:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studysea.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 24 June 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.191 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by studysea-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 73ms

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 Records#

1 records 69ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.191	3600s	webforward.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	studysea-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca04::d 2a01:111:f403:ca09::8 52.101.68.32 52.101.73.26 52.101.73.28 52.101.73.4	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00204.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	46.30.213.133

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 447ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 08:50:58

www	104.19.154.92 (AS13335) (address records, no CNAME)
www vs bare domain	Different networks studysea.dk: 46.30.213.191 (AS51468) www.studysea.dk: 104.19.154.92 (AS13335) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

200ms

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

🏷️ SOA#

85ms

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#

WHOIS fetched 2026-10-07 18:48:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-06-24
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

73ms

69ms

67ms

AAAA

79ms

TXT

447ms

CAA

69ms

HTTPS

97ms

TLSA

682ms

SOA

85ms

MTA-STS

51ms

DNSSEC

200ms

SRV

138ms

Total

3445ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 08:50:58	2977ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-08 18:33:52	1319ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 18:25:36	1304ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 15:42:17	867ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 23:38:24	5327ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 13:53:14	1251ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 22:44:54	5713ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 02:03:14	3381ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 16:15:51 shown	3445ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:45:40	2941ms	2 NS 1 A 1 MX	🔒 Secure