HTTP(S)” refers to the Hypertext Transfer Protocol (Secure). This is the protocol over which data is sent between a user’s browser and the website they are connected to.
The ‘S’ at the end of HTTP stands for ‘Secure’, which means all communications between your browser and the website are encrypted. It uses Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols to provide this layer of security.
When you see ‘http://www’ in a web address, it means you’re connecting to the website using HTTP. However, when you see ‘https://’ at the start of the web address, it means you’re connecting to the website using HTTPS, which is secure.