Research

We run automated public-signal checks on 10,502 independent online stores. These studies report what that corpus shows — including where it contradicts the usual advice, and where our own measurements are too weak to support a claim.

Figures across all studies reflect the corpus as of 2026-08-10.

Using these figures

Every study states its methodology and its limitations, including signals we exclude because our detection is not good enough to report them honestly. If you are citing a number, read that section first — several of the figures measure what an automated checker can discover, which is a floor on what exists rather than a count of it.

Questions or corrections: hello@checkiflegit.com.