Apache is a free and open-source cross-platform web server software.
Gatsby is a React-based open-source framework with performance, scalability and security built-in.
Google PageSpeed is a family of tools designed to help websites performance optimisations.
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.