Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
Divi is a WordPress Theme and standalone WordPress plugin from Elegant themes that allows users to build websites using the visual drag-and-drop Divi page builder.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.