See what works for other businesses
The lift library combines finished measurements of the same kind of fix across many businesses, so you can see what a fix usually does before you try it.
What the lift library is
One business’s result is noisy. The same kind of fix measured at many businesses is better evidence. The lift library combines every finished measurement of one kind of fix, aimed at the same assistants, into one result.
It never shows one business’s numbers. A kind of fix appears only once 5 businesses from 3 different LegitGeo accounts have finished measuring it, and it appears whether it helped, did nothing or hurt.
It is on every plan.
Look up a kind of fix
On the Proof page, scroll to What works across businesses.
The section (1) and, until a kind of fix is published, its empty message (2). Demo business, captured October 23, 2026. Read each kind of fix listed: its name, the assistants it was aimed at, how many businesses measured it and how many of those were verified on their own.
Read the number on the right: the average effect in points across those businesses, with its 95% range underneath.
Read the line “The next business can expect … to … points”: the range one more business, such as yours, could expect. When it ends “results differ a lot between businesses.”, the average says less about your own case.
Library results also show on Diagnosis: once a kind of fix is published, each fix of that kind carries a pill that starts “Measured” and gives the average effect and the number of businesses.
While the library is filling
Until any kind of fix reaches 5 businesses from 3 different LegitGeo accounts, the section says “The library fills as businesses finish measuring changes. Nothing has been measured to the end yet.” or “Building: … kinds of change have finished measurements, none at 5 businesses yet.”
Which changes count
Finished Diagnosis fixes, Action Center actions and changes reported by platforms count, when they had a comparison.
Changes you log on the Proof page are measured for you but never added, because a description in your own words does not say which kind of fix it was. A change an AI tool logs with a kind of fix can be added. Left-out changes and changes still measuring are never added.
The same library is public on How we prove it.