Reavlo's tools are meant to be checked. These are the rules every tool follows, and the reason each result shows how it was measured.
Real checks, not impressions
Every tool checks something concrete in what you give it: your links, your numbers, your text. A result names what it found, where it found it and the exact fix. We don't publish generic "health" scores, and we don't show numbers we can't explain.
Every result explains how it was measured
Each tool page has a methodology section: what is checked, the rules, their sources and their limits. When a tool gives a score, the formula is published next to it. When a rule relies on an outside definition, such as GA4's default channel groups, we name it and link to it.
Stable finding ids
Each finding has an id, like utm.source.inconsistent, that never changes meaning. The id appears in the result, in the methodology and in anything you copy, so two people can talk about the same finding, and two runs can be compared.
Versioned engines
Each tool runs on an engine with a version, like utm-audit 1.0.0. Any change to a calculation, a score or a rule changes the version. Results show the version they were made with.
Runs in your browser
Today's tools run entirely on your device. What you paste or type is processed in the page and isn't uploaded, stored or logged. Our servers only see the page requests your browser makes, like any website.
No gate in front of the result
Every result is free and complete. There's no sign-up, no email wall and nothing is blurred.