Что такое SSL-сер
An SSL certificate is a tool that ensures the confidentiality of the information transmitted between a server and a user. SSL stands for Secure Sockets Layer, a security protocol that creates an encrypted connection. Each certificate is issued for a specific domain name, containing the necessary data to identify its owner.
A website secured with an SSL certificate uses HTTPS (https://) for its Internet connection. You will notice the website is protected by the presence of a padlock icon in the address bar of your browser. Adding an SSL certificate to your website will improve its reputation and give your website users a sense of security.
To add an SSL certificate, please follow the instructions here.