Glossary¶

Definitions of the terms you'll see across Squoosh. Each entry links to the page that covers it in full.

Audience size How many synthetic shoppers run in a single test. For A/B tests, the default and recommended size is Standard, a sample of 1,000 shoppers. For Conversion Reports, you choose a named panel of 2–10 shoppers instead. See Run an experiment and Conversion Reports.

Auto-stop Always on. A run ends early once a winner holds at the 80% confidence bar, but never before 40% of the sample finishes. There is no toggle. See Experiment lifecycle and auto-stop.

Calibration Shaping your synthetic shopper pool to match your real traffic — device mix, traffic source, and location — from your connected Shopify or Google Analytics data. You calibrate the pool once; every experiment reuses it. See Create synthetic shoppers.

Confidence How sure Squoosh is that the result is real and not random noise. Squoosh calls a winner at 80% confidence and never reports more than 98%. See Reading lift and confidence.

Control page (A) and Variant page (B) The two versions you test: the current page (Control page (A), tagged "A · Control") and the new version (Variant page (B), tagged "B · Variant"). You supply both — Squoosh does not write the variant for you. The default way to provide version B is Two URLs: paste a second, separately hosted page. See Variant ingestion.

Conversion Report A single-page funnel-leak diagnostic. You pick a small named panel of 2–10 synthetic shoppers by archetype and point them at one page; Squoosh crawls the page to discover the funnel, walks the panel through it, and shows you where and why shoppers drop off. There is no second version, and no winner, lift, or confidence. See Conversion Reports.

Conversion Report panel The 2–10 named synthetic shoppers who walk the funnel in a Conversion Report. You assemble the panel by picking archetypes (Budget hunter, Deep researcher, Impulse buyer, Brand loyalist, Skeptic, Gift buyer) and a size tier: Quick read (3), Standard (6, recommended), or Deep panel (10). Each shopper has a name and can be watched individually. See Conversion Reports.

Credit The unit you spend to run a test. Each workspace has one shared credit balance, and every test draws from it. The run wizard shows a test's exact credit cost before you launch. See Credits and tests.

Experiment Insights A plain-language summary of what drove the result, shown directly under the verdict after a run finishes. It explains how the two versions differed and why shoppers decided the way they did. See Reading the verdict.

Lift How much the variant changed your conversion rate versus the control, as a relative percent. A positive lift means the variant converted more; a negative lift means it converted less. The number shown is an estimated real-world lift, conservatively discounted from the raw shopper result. See Reading lift and confidence.

95% CI The range shown under the lift — for example +6% → +37% — that the true lift most likely falls within. A narrow range means a precise result; a wide range means less certainty about the exact size of the effect. See Reading lift and confidence.

Primary goal The conversion you optimize in an A/B test: Add to Cart or Checkout. See Run an experiment.

Shopper match A score from 0 to 100% showing how closely your synthetic shopper pool's mix matches your recorded traffic across device, source, and location. It appears once you connect Shopify or Google Analytics. See Synthetic shoppers.

Shopper task A shopping objective the synthetic shoppers attempt during a run — for example, browse a collection and decide whether to add an item to the cart. Each test runs several tasks, and many shoppers run each one. See Run an experiment.

Synthetic shopper An AI shopper that browses your pages the way a real customer would — reading, clicking, and deciding whether to buy. Squoosh sends a panel of them to each version of your page and records what they do. See Synthetic shoppers.

Test One experiment run — an A/B test or a Conversion Report. The sidebar shows "N tests left," the number of Standard tests your current credit balance covers. See Credits and tests.

Traffic profile How the synthetic shoppers arrive at your page: Organic / Direct (browsing) or Paid Ad (PDP) (landing on a product page from an ad). It sets the source and intent of the shoppers, not a split between the two versions. See Run an experiment.

Verdict The decision Squoosh files when an experiment finishes: Variant B wins, Keep the original, or Too close to call. "Keep the original" is a real outcome, not a failure, and there is no ship button — rolling out a variant is always your call. See Reading the verdict.