The digital certificate that is used to establish a secure connection between websites and Internet users. This certificate encrypts the data generated as a result of the communication between the server and the browser, thus ensuring that the communication is secure. Users should pay attention to whether the websites they visit and share their data with have SSL certificates. While the SSL certificate is a must for all websites, While the SSL certificate is a must for all websites, but they are especially crucial for e-commerce sites where users share many types of sensitive data. Users can easily find out whether the website they visit has the SSL certificate by checking if there is a padlock symbol on the left of the URL of the website.