[Let’s Encrypt](https://letsencrypt.org/) is a Certificate Authority that provides free [TLS/SSL certificates](https://www.digitalocean.com/community/tutorials/openssl-essentials-working-with-ssl-certificates-private-keys-and-csrs), enabling encrypted HTTPS on web servers. This tutorial will guide you through securing your Apache web server using Let’s Encrypt and [Certbot](https://certbot.eff.org/), the Let’s Encrypt client that helps automate the process of obtaining and installing a certificate. Choose your operating system below to get started.