Edge computing is changing the affiliate stack.

Edge computing is changing the affiliate stack.

Classic setup: user request → CDN serves static files → origin server handles logic → response back.

Edge computing setup: user request → logic runs AT the CDN edge node → response back without hitting origin at all.

Cloudflare Workers, Fastly Compute, and AWS Lambda@Edge let you run JavaScript (or WASM) at edge nodes globally. This means you can:

- A/B test landing pages without origin round-trips
- Redirect users based on geo without server load
- Personalize affiliate links based on visitor country (important for compliance with regional offers)
- Block bot traffic before it hits your origin

For CPA campaigns especially, geo-based routing at the edge is a serious advantage. US traffic goes to US offers, EU traffic gets EU-compliant pages, APAC gets local creatives. All at