shiftzero

Experimentation at the edge.

A/B tests applied server-side in the stream, scored live, healed when your site changes.

Zero flicker

Variants are applied in the HTML stream at the edge — visitors never see the swap.

Results you can trust

Always-valid, peek-safe statistics. Look at the scoreboard whenever you like.

Any stack, consent-first

Next.js, Shopify, Rails, plain HTML — no SDK in your app, no measurement without consent.

Self-hosted on your own infrastructure · your data never leaves it.

shiftzero

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