Information on SSL certificates for Website. An SSL certificate is a data file hosted in a website's origin server. SSL certificates enable websites to move from HTTP to HTTPS, which is more secure. SSL certificates make SSL/TLS encryption possible, and they contain the website's public key and the website's identity, along with related information. Devices attempting to communicate with the origin server will reference this file to obtain the public key and verify the server's identity, link below to website from CloudFlare.