Let’s Encrypt is a certificate authority that provides TLS/SSL certificates free of charge. The certificates expire after 90 days, but can be renewed any time for free. The non-profit organization was created to make it possible for anyone to serve a website over HTTPS. Let’s Encrypt provides an API that automates certificate creation as part of software installation on a server.

Certificate, Security terms

  • How to protect yourself while on the Internet.
  • Computer security help and support.
  • The official Let’s Encrypt website.