SSL Certificate: slack.com

đŸŸĸ Valid Certificate
Common Nameslack.com
IssuerLet's Encrypt
Issuer CNR13
Valid FromFeb 1 09:50:35 2026 GMT
Valid UntilMay 2 09:50:34 2026 GMT (31 days left)
Serial Number05B60B25695B5297C6BE2EA1BE2490F593C1
🌐 Subject Alternative Names (2)
â„šī¸ About SSL Certificates

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

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