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SSL Certificate
github.com
Subject
- CN
- github.com
Issuer
- C
- GB
- O
- Sectigo Limited
- CN
- Sectigo Public Server Authentication CA DV E36
Valid From
March 6, 2026 at 12:00 AM UTC
Valid To
June 3, 2026 at 11:59 PM UTC
Subject Alternative Names (SANs)
DNS:github.com, DNS:www.github.com
Serial Number
1dc289c1eadafb04e9d1cf53d5d72253
Fingerprint (SHA-256)
AB:58:EA:12:8B:A9:2C:A6:9A:31:B3:6B:4E:54:56:53:EE:D2:A6:CF
How it works
Understanding SSL/TLS Certificates
SSL/TLS certificates are the foundation of secure communication on the internet. When you visit a website over HTTPS, your browser and the web server perform a handshake where the server presents its certificate to prove its identity. The certificate also establishes the encryption keys used to protect data in transit.
A valid SSL certificate matters for more than just security. Search engines use HTTPS as a ranking signal, and browsers actively warn users when visiting sites without valid certificates. Expired or misconfigured certificates can lead to lost traffic, reduced trust, and lower search rankings.
FAQ
SSL Certificate FAQ
Common questions about SSL/TLS certificates and web security.
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