HTTPS
HTTPS, which stands for HyperText Transfer Protocol Secure, is the secure version of HTTP.
The major difference lies in the use of SSL/TLS encryption to protect data transmitted between the user’s browser and the web server, preventing interception and manipulation of data by third parties.
HTTPS is now the standard for websites and is a ranking factor for Google (albeit a very nuanced one), which means that the use of HTTPS can (imperceptibly) improve a website’s position in search results.