If you run Google Ads for a living, you already know the drill. You want to test three headlines and two hero images, you open Unbounce or Instapage, and within twenty minutes you're deciding whether this experiment is worth bumping the plan tier for. A/B testing is the feature that actually moves CPA — and it's the feature every landing page builder puts behind their highest-priced plan.

This post is about the other way to do it: deploy each variant as a static site, split traffic at the edge, and read a cookie to attribute conversions. No per-page pricing, no template jail, works with whatever stack your team already ships.