Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.
Framer is primarily a design and prototyping tool. It allows you to design interactive prototypes of websites and applications using production components and real data.
GitHub Pages is a static site hosting service.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Varnish is a reverse caching proxy.