Marketplace Intelligence.

How to read a marketplace listing: what each signal means, what it can't tell you, and when something that looks like a warning sign is actually normal seller behavior.

This is not advice about what to buy but how to think about what you are looking at. We would rather you disagree with us for a good reason than agree with us for no reason.

Or just try it on something.

Reading about skepticism is a poor substitute for practicing it. Paste a listing and see what we notice.

Analyze a listing