Video lesson of the greenhouse: what is a SSL certificate, why is it needed and where to get it

What is a SSL certificate? If simplified, this is something like your individual digital signature, more precisely, the digital signature of your site. Without SSL, you cannot configure HTTPS, a protected data transfer protocol from the site to the user and vice versa. In our video tutorial, we talk about the Cloudflare.com service, where this certificate can be purchased for free.

In order for the SSL certificate to become recognized and the HTTPS protocol enters, it must be certified by one of the certification centers (Certification Authority, CA) . This is an organization with an impeccable reputation. The certification center can be compared with a notary public, and notaries do not work for free. The price of the SSL certificate in Russia starts from two to three thousand rubles per year and reaches 100-200 thousand depending on the certification center and the level of certificate protection.

Cloudflare.com can be called a Content delivery network (CDN). The service provides an opportunity to use its SSL certificate for free. After registering in the Cloudflare system and performing several simple actions, your site in cache -form is duplicated on Cloudflare servers. Visitors to HTTP already turn to them and they receive content from them.

Thus, the exchange of users with the server goes through a secure protocol with the current SSL-cells from Comodo CA.