HTTPS (HyperText Transfer Protocol Secure) is a secure version of HTTP, the protocol used to transfer data over the internet. HTTPS encrypts data transmitted between a web server and a client, typically a web browser, to prevent it from being intercepted and read by third parties.
When you visit a website using HTTPS, your connection to the website is encrypted with a secure SSL/TLS (Secure Sockets Layer/Transport Layer Security) certificate. This ensures that all data transferred between your web browser and the website server is secure and cannot be intercepted by third parties.
HTTPS is often used on websites that process sensitive information, such as online banking and e-commerce websites, to protect against data breaches and ensure that customer data remains private.
You can tell if a website uses HTTPS by the URL. Websites that use HTTPS have a URL that starts with "https" instead of "http". Some web browsers also display a padlock icon in the address bar to indicate that a website uses HTTPS.