SSL Certificate: ref.ch

đŸŸĸ Valid Certificate
Common Nameref.ch
IssuerLet's Encrypt
Issuer CNR12
Valid FromApr 1 01:18:25 2026 GMT
Valid UntilJun 30 01:18:24 2026 GMT (87 days left)
Serial Number05118A5D432F82315EA1DBD40DA14BB4E20E
â„šī¸ About SSL Certificates

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

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