Edge Experimentation: Running A/B Tests at the CDN Layer
Edge A/B testing explained: how Cloudflare Workers, Vercel Edge Middleware, Lambda@Edge, and Fastly Compute avoid flicker, and when it is overkill.
Complete, honest guides on CRO, A/B testing and experimentation: statistics, sample size, test design and what to do with the results. No fluff. (page 19 of 24)
Edge A/B testing explained: how Cloudflare Workers, Vercel Edge Middleware, Lambda@Edge, and Fastly Compute avoid flicker, and when it is overkill.
Feature flags for mobile apps: kill switches, staged rollouts, remote config caching, and how to dodge App Store review pitfalls on iOS and Android.
Growth experimentation for SaaS: the activation funnel, ICE prioritization, funnel statistics, and the full PLG playbook for growth teams.
A neutral comparison of feature flag tools: LaunchDarkly, Unleash, Flagsmith and PostHog by hosting model, pricing, and A/B testing integration.
How to implement server-side A/B testing: SDK setup, deterministic hashing, cross-service parity, A/A validation, and QA before you trust the pipeline.
Progressive rollout vs canary release: what each means, guardrail metrics to watch, rollback triggers, and how this differs from A/B testing.
Client-side vs server-side testing explained: how each works, the flicker problem, SEO and Core Web Vitals impact, and when to choose which.
What is a feature flag? Learn the 4 flag types, safe rollout strategies, and how to avoid feature flag technical debt in your product.
Feature flags vs A/B testing: what each one solves, when to use just one, and how to combine controlled rollout with real statistical rigor.