SSL Certificate and Why It Is Mandatory to Have an on Your Website Secure Socket Layer (SSL) is an acronym for Secure Socket Layer. SSL certificates allow the web server and the visitor's web browser to communicate in a secure manner. It is responsible for encrypting all data files and information exchanged between the web servers and the website's visitors. If malevolent activity attempts to intercept data files during their transit, the data files will remain unreadable due to the encryption applied to them. As a result of the encryption offered by SSL certificates, the information cannot be manipulated or stolen. The majority of online users have grown quite selective about the websites they visit. People are starting to realize how important their online security is. As a result, users will choose to visit safe websites and avoid those that are unsecured.