What is an SSL certificate
Before proceeding to the point on why the site needs an SSL certificate, it is worth noting the concept of the SSL protocol itself. This is a cryptographic protocol that provides reliable data transmission over the network. It is a guarantee of a secure connection between the user browser and the resource.
HTTP vs HTTPS
HTTPS has greatly enhanced the security of HTTP data. If SSL is installed on the site, then all data is transmitted via HTTPS - a secure version of the HTTP protocol. It encrypts user data and forwards it to the site owner via the TCP transport protocol. In other words, all information transmitted by the user is hidden by encryption from third parties: operators, Wi-Fi administrators, and providers.
What is SSL/TLS certificate?
Information security on the Web is one of the main issues that site owners should pay close attention to. In the world of rapidly growing cyber threats, they need to clearly understand how to prevent data leakage or protect their resource from access to it by third parties. The installation of SSL certificates has become a modern standard for site security. However, such a protection mechanism is relatively new and difficult for the mass user. Let's understand what this technology is and how it ensures the security of information on web resources.