Fastly

Fastly is a cloud edge platform founded in March 2011 and headquartered in San Francisco, California. It was founded by Artur Bergman, previously chief technical officer at Wikia. Its product line is grouped as Deliver, Secure, Deploy and Observe: a CDN for caching and delivery, a security stack covering WAF, bot management, API security and DDoS protection, an edge compute platform, and visibility from origin to edge. Its caching infrastructure uses a heavily modified version of Varnish.

Fastly Compute is a serverless edge computing platform that runs application code on Fastly's distributed network. It uses a WebAssembly runtime based on Wasmtime to execute code in isolated sandboxed environments close to end users, and developers can write Compute applications in languages including JavaScript, Rust, C++ and Go. For teams that want help, Fastly also sells a Managed CDN deployed inside your own network and Managed Security with expert-run WAF, bot and DDoS protection. Fastly's network map lists 622 Tbps of capacity.

Fastly's own pricing page lists a Free tier with usage-based pricing, usage-based Growth pricing, and custom Enterprise packages alongside flat-rate Network Services, Compute, Observability and Security packages. Configuration is done through the web interface, the Fastly API and the Fastly CLI, and the documentation covers both the VCL platform and the Compute platform.