Securing your website is the goal of every developer. As of now, there are many possible ways to deal with website security. With the HTTP protocol, it is a bit challenging since it is stateless.
What Is Stateless?
When a sender sends a request to the server, the server processes it and sends back a response to the sender. Then, the cycle is over and the state is closed. The next request, even from the same sender, is considered a new request, or a new state. In short, every request is new to the server.