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.
GitHub Pages is a static site hosting service.
LottieFiles is an open-source animation file format that's tiny, high quality, interactive, and can be manipulated at runtime.
MkDocs is a static site generator, used for building project documentation.
Unpkg is a content delivery network for everything on npm.
Varnish is a reverse caching proxy.