Fastly Compute@Edge
Build high-performance, secure, and scalable serverless applications that run at the network edge.
Cold Start Time
Sub-microsecond
Deployment Speed
Global in seconds
Supported Languages
JavaScript, Rust, Go, and more
About Fastly Compute@Edge
Fastly Compute@Edge is a serverless computing platform designed for building and running applications and logic at the network's edge. It utilizes WebAssembly (Wasm) for a secure, high-performance execution environment, which eliminates cold starts and allows code to run in microseconds. This architecture provides stronger security and isolation compared to traditional container-based serverless solutions. It supports languages like JavaScript, Rust, and Go, integrating with developer workflows through a CLI, Terraform provider, and CI/CD pipelines. Key use cases include real-time personalization, A/B testing, API acceleration, and security enforcement, enabling developers to offload logic from origin servers and improve end-user experience.
Architecture & Performance
Runtime Engine
WebAssembly (Wasm)
Isolation Model
Secure, memory-safe sandbox per request
Cold Starts
Eliminated for deterministic performance
Network
Globally distributed edge network (POPs)
Developer Experience
Tooling
Fastly CLI for local development, testing, and deployment
Integrations
Terraform, GitHub Actions, and other CI/CD workflows
Observability
Real-time log streaming to over 30 providers (Datadog, Splunk, S3)
Control
Programmatic control over service configurations, environment variables, and backends