Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
Google Sign-In is a secure authentication system that reduces the burden of login for users, by enabling them to sign in with their Google account.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Lightbox is small javascript library used to overlay images on top of the current page.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
XenForo is a PHP-based forum hosting program for communities that is designed to be deployed on a remote web server.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.