HTTPS stands for HyperText Transfer Protocol over SSL (Secure Socket Layer). It is a TCP/IP protocol used by Web servers to transfer and display Web content securely. The data transferred is encrypted so that it cannot be read by anyone except the recipient.
HTTPS is used by any Web site that is collecting sensitive customer data such as banking information or purchasing information. If you are making a transaction online, you should make sure that it is done over HTTPS so that the data remains secure.
You can tell when a page is using HTTPS in two ways:
- There will be a lock icon in the browser window pane (usually at the bottom).
- The URL will say "https://"
Learn more about HTTPS and how to add it to your Web server with my article What is HTTPS