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SSL Certificate: course.rusada.ru

🟢 Valid Certificate
Common Namecourse.rusada.ru
IssuerLet's Encrypt
Issuer CNR12
Valid FromMay 23 12:21:05 2026 GMT
Valid UntilAug 21 12:21:04 2026 GMT (80 days left)
Serial Number06D6C678C219D3F7490860AE49B92AFA0CC0
🌐 Subject Alternative Names (1)
ℹ️ About SSL Certificates

SSL (Secure Sockets Layer) certificates encrypt data between your browser and course.rusada.ru's server. A valid SSL certificate ensures that your connection is private and that you're communicating with the real Course website.

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