studkoersel.dk

📜 Historical scan 2026-08-12 08:55:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

studkoersel.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 March 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.50.143 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by .. The zone is DNSSEC-signed and validates, has no 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 44ms

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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.186.50.143	43200s	5.186.50.143.static.fibianet.dk	AS44869	FIBIA P/S	5.186.0.0/16	🇩🇰 Denmark	Aarhus

📧 MX Records#

1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-12 21:31:17

www	5.186.50.143 (AS44869) (address records, no CNAME)
www vs bare domain	Same network studkoersel.dk: 5.186.50.143 (AS44869) www.studkoersel.dk: 5.186.50.143 (AS44869)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

73ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081101
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 2026-10-10 02:01:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-03-06
Expires	2027-03-31 (161d)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

38ms

41ms

AAAA

36ms

TXT

139ms

CAA

52ms

HTTPS

43ms

TLSA

72ms

SOA

0ms

MTA-STS

52ms

DNSSEC

73ms

SRV

58ms

Total

573ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 21:31:17	1033ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 04:12:06	581ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 22:15:45	496ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 08:55:10 shown	573ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 22:55:26	8484ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 20:35:23	495ms	2 NS 1 A 0 MX	🔒 Secure