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SSL Certificate: docs.github.com

🟢 Valid Certificate
Common Name*.github.io
IssuerLet's Encrypt
Issuer CNR12
Valid FromApr 6 23:32:36 2026 GMT
Valid UntilJul 5 23:32:35 2026 GMT (57 days left)
Serial Number058D52AB702D0FF4B62B747A8AFE3C3BB8DA
🌐 Subject Alternative Names (6)
*.github.com*.github.io*.githubusercontent.comgithub.comgithub.iogithubusercontent.com
ℹ️ About SSL Certificates

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

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