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SSL Certificate: dziennik.vulcan.edu.pl

🟢 Valid Certificate
Common Namedziennik.vulcan.edu.pl
IssuerGoogle Trust Services
Issuer CNWE1
Valid FromJun 3 20:17:09 2026 GMT
Valid UntilSep 1 21:17:07 2026 GMT (53 days left)
Serial NumberB30198C29DFB6D6F135733A449CD3BAE
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and dziennik.vulcan.edu.pl's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Dziennik website.

Websites without valid SSL certificates may show browser warnings and are penalized in search engine rankings.