13 min read · choose Wasm over containers for latency-sensitive edge logic
WebAssembly at the edge: when Wasm beats containers for serverless and CDN logic
Containers still own long-lived services, but edge PoPs need sub-millisecond starts and tiny binaries. Wasm runtimes on Cloudflare Workers, Fastly Compute, and Spin give sandboxed, request-scoped compute—use them for auth gates, routing, and transforms, not for databases.