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.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
UmiJs is a scalable, enterprise-class frontend application framework that supports both configuration and conventional routing while maintaining functional completeness, such as dynamic routing, nested routing, and permission routing.
Varnish is a reverse caching proxy.