Install it, run your first audit, apply a fix, undo it if you like. Two minutes to learn, and below it, the exact math behind every number we show you.
From WordPress.org. No account, no card, read-only by default.
The Local Audit scans on your own server and names what is slowing you down.
Ranked by what it wins back. You see the evidence and exactly what will change before you click.
Every change lands in Fix History and reverses in one click.
Paid plans add AI-ranked fixes and the SEO & AEO audit. See pricing
Both of BoltAudit's numbers are estimates, and you deserve to see the working. Here it is, in plain English.
BoltAudit measures your site's real loading speed across phones and computers, then uses published research on how many people abandon a page at that speed to estimate the share of visitors you are losing. It weights the estimate by your actual mobile and desktop traffic split. It is a research-backed estimate, not a measurement of your analytics, and every figure is labeled as an estimate.
Real speed on phones and computers, measured separately.
Published abandonment research, not our opinion.
Weighted by your actual mobile and desktop split.
That ranked list is your Audit Report.
Sample data
Biggest cause on this sample site: 4.2 MB of oversized images. Fixing it wins back an estimated 9%.
The score is an estimated composite of two things we can genuinely measure. Search readiness: deterministic checks on your own pages, titles, metas, schema validity, canonicals, internal links. AI citability: how ready your pages are for answer engines, crawler access, content structure, whether the answer sits in the HTML where an AI can read it. Each check carries a weight, each finding carries evidence, and when we cannot produce a defensible number you will see "estimate unavailable" instead of a guess.
After you apply a fix, Fix History shows the real measured change, including "no measurable change". The estimate got you to act. The measurement tells the truth. That is also why every fix undoes in one click.
Where research is estimated or contested, our figures say estimated.
The Local Audit is free, read-only, and runs on your server. Two minutes to your first report.