One script tag scores every visitor in real time and swaps the zones that matter - headline, recommendations, urgency, cart - flicker-safe, without fighting your CDN. An always-on holdout proves it lifted revenue. Live in about 15 minutes.
Outcome-shaped, not feature-shaped. Pick the two that matter most to your store today; the rest stay available for when you grow into them.
No audiences to build, no rules to maintain, no A/B you have to babysit. Three things happen on the page, in order, in milliseconds.
The tag reads what each shopper actually does - dwell, scroll, hover, cadence - and sorts them into a cohort. No login required, no audience to hand-build.
Behavior maps to the headline, recommendations, urgency and cart treatment that fit - rendered deterministically, in milliseconds, with no flicker.
An always-on 10% holdout measures the real incremental lift, and cart triggers fan out to the Klaviyo or Braze account you already run.
Rules and classical ML decide what ships - same inputs, same experience. No generative text on the live path.
Copy is drafted offline for a person to approve before it ever goes live. No brand-safety roulette at 2 a.m.
A 10% control group measures real incremental revenue on every change, from day one.