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SSL Certificate: oauth.telegram.io

🟢 Valid Certificate
Common Nametelegram.io
IssuerLet's Encrypt
Issuer CNYR2
Valid FromJun 2 17:01:52 2026 GMT
Valid UntilAug 31 17:01:51 2026 GMT (89 days left)
Serial Number059BA49A3187B67998AEA79985FD9D6BFAC8
🌐 Subject Alternative Names (2)
*.telegram.iotelegram.io
ℹ️ About SSL Certificates

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

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