Apache is a free and open-source cross-platform web server software.
Blitz provides intelligent static page caching for creating lightning-fast sites with Craft CMS.
cdnjs is a free distributed JS library delivery service.
Google Analytics is a free web analytics service that tracks and reports website traffic.
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.
SEOmatic facilitates modern SEO best practices & implementation for Craft CMS 3.
Typekit is an online service which offers a subscription library of fonts.