linux-kursus.dk

Records from scan: 2026-10-09 12:18:09  ·  773ms total  ·  last checked 2026-10-20 03:38 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

linux-kursus.dk is a .dk domain served by 3 nameservers (ns.pi.dk, ns2.pi.dk, ns3.pi.dk). It was registered on 7 June 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.138.4.36 is hosted by velia.net Internetdienste GmbH (AS29066) in France. Mail is handled by linux-kursus.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records   54ms
NameserverIP addressesPTRASN / ISP
ns.pi.dk 188.138.4.36 static-ip-188-138-4-36.inaddr.ip-pool.com AS29066 velia.net Internetdienste GmbH
ns2.pi.dk 194.99.45.76 — AS204866 Microdata Aps
ns3.pi.dk 212.237.177.6 ns3.pi.dk AS204151 EWII Bredbaand A/S

🌍 A Records#

1 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
188.138.4.36 7200s static-ip-188-138-4-36.inaddr.ip-pool.com AS29066 velia.net Internetdienste GmbH 188.138.0.0/21 🇫🇷 France Strasbourg

📧 MX Records#

1 records   50ms
PriorityTTLMail ServerIP addressesPTRASN
0 7200s linux-kursus.dk 188.138.4.36 static-ip-188-138-4-36.inaddr.ip-pool.com AS29066 velia.net Internetdienste GmbH

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover188.138.4.36
🔶 Autoconfig188.138.4.36

🔷 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#

checked 2026-10-09 12:18:09
www188.138.4.36 (AS29066) (address records, no CNAME)
www vs bare domainSame network
linux-kursus.dk: 188.138.4.36 (AS29066)
www.linux-kursus.dk: 188.138.4.36 (AS29066)
WildcardYes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

129ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

59ms
FieldValue
Serial2023091800
Primary NS (MNAME)ns.pi.dk
Responsible (RNAME)hostmaster@pi.dk
Refresh7200s
Retry3600s
Expire2600000s
Minimum (neg-cache TTL)7200s

📋 Registration#

WHOIS fetched 2026-10-10 09:42:56
FieldValue
RegistrarDomænehajen ApS
Registered1999-06-07
Expires2027-06-30 (252d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
54ms
A
50ms
MX
50ms
AAAA
43ms
TXT
287ms
CAA
33ms
HTTPS
45ms
TLSA
84ms
SOA
59ms
MTA-STS
73ms
DNSSEC
129ms
SRV
87ms
Total
773ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 12:18:09 shown 773ms 3 NS 1 A 1 MX 🔓 Insecure
2026-10-03 07:17:09 6357ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-28 06:32:49 2621ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-02 12:49:42 4380ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-26 15:49:05 934ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-09 22:57:26 4829ms 3 NS 1 A 1 MX 🔓 Insecure
2026-07-13 08:36:03 6570ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-19 16:06:50 1999ms 3 NS 1 A 1 MX 🔓 Insecure
2026-06-17 20:17:54 1054ms 3 NS 1 A 1 MX 🔓 Insecure
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