# How we research · Campaign Buyer

> Source: https://campaignbuyer.com/methodology

Trustmedia buyer software

## How we research

How we gather evidence from long-term user reports and vendor pricing, why tools are ranked in order rather than scored, and how the site makes money.

### Where the evidence comes from

We read public discussions: Reddit threads, Hacker News comments, and reviews on G2, Capterra and Trustpilot. We group what people repeatedly say into themes. Every quote we publish is a verbatim excerpt and links to the thread it came from, so you can read it in context and disagree with our reading of it.

We do not publish a claim we cannot link to a source. Research that has not been checked by a person is not published at all.

### How we rank

Rankings reflect what the evidence supports for a specific kind of buyer, and are set before any commercial conversation. A tool that pays us nothing can outrank one that does, and on this site some do.

### How we make money

We may earn a commission when you buy through links on this page. It never affects our rankings. When you buy through one of our links, the price you pay is unchanged.

### Corrections

Pricing and features change. Each tool page shows the date we last checked. If something here is wrong, [tell us](/contact) and we will fix it and say that we did.

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Campaign Buyer reviews the trackers, landing page builders, attribution tools and ad-spy software that performance media buyers actually run. We read what long-term users report and verify pricing with each vendor, so every pick names what it is bad at, not just what it sells.

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We may earn a commission when you buy through links on this page. It never affects our rankings.