How to Add a Free SSL Certificate to Nginx: A Step-by-Step Guide Introduction Implementing HTTPS by adding a free SSL certificate to your Nginx server is a pivotal step in enhancing website security. In this tutorial, we’ll cover the nginx ssl configuration process using Let’s Encrypt, a service offering free SSL/TLS certificates. This guide aims to provide an easy-to-follow procedure to enable https with nginx, ensuring your web communication remains secure and trusted by both users and search engines.