DeftMerch
AI merchandising that sorts itself

DeftMerch personalization glossary

Plain-language definitions for the e-commerce personalization terms buyers ask about.

Personalization

Changing a commerce experience from consented context so it better fits the current shopper or session.

Holdout

A randomly selected group that keeps the unchanged experience so a team can measure incremental lift.

Collection ordering

Ranked per shopper, continuously

Incremental lift

The improvement caused by a change after ordinary traffic mix and seasonality are separated out.

Guardrail

A hard rule that limits what an automated experience can show, change, or optimize.

Revenue per visitor

Total revenue divided by visitors. It captures conversion and order value in one useful test metric.

Keep exploring

Answers · Comparison guide · Alternatives · Glossary · Use cases

Get a free personalization audit

Send your store URL and get the three highest-impact opportunities in a short report you keep.

Get a free audit