Who is Fastly Compute best for?

Best use cases for Fastly Compute

• High-traffic applications requiring sub-millisecond edge processing at very large scale — Fastly's network handles billions of requests per day, and Compute runs logic at the same edge layer without an additional hop.
• Teams already on Fastly CDN that want to add programmable logic (custom caching, request transformation, edge authentication) to their existing Fastly configuration without adding a separate edge compute vendor.
• Organizations with WebAssembly or Rust expertise that want the performance and security properties of Wasm-based edge execution and are willing to accept the more complex development toolchain.

Who should avoid Fastly Compute?

• You need deep cloud-native triggers and managed event ecosystems as the default
• You want maximum portability and minimal platform-specific edge patterns
• You need long-running or heavy compute per request

Upgrade triggers for Fastly Compute

• You need more complex state patterns and operational ownership at the edge
• Runtime constraints block required dependencies or workloads
• You need clearer cost modeling for global traffic and networking

Next steps