This meaning refers to the standard application-layer protocol underlying much communication on the World Wide Web.
The browser uses HTTP to request the page.
HTTP defines how clients and servers exchange messages.
This broader use refers to network traffic, messages, connections, or services operating according to the HTTP protocol.
The firewall allows HTTP but blocks another port.
The log contains every HTTP request.
This use contrasts plain HTTP with HTTPS, which protects communication through encryption and authentication.
The site should not transmit passwords over HTTP.
Modern browsers warn users about insecure HTTP pages.
