What he writes about here
Every comparison on this site is written or reviewed by Christoph Trappe. The recurring subjects are the ones advertisers get wrong most often:
- How internet advertising platforms price access — deposits, minimum bids, and the gap between a published floor and a workable budget
- Why the same campaign behaves differently on a walled garden and on an open-web ad network
- What survives in measurement now that browser-based tracking has stopped being dependable
- Which claims from platform marketing hold up against the platform's own documentation
How he works
Accounts get opened before anything is written. Documentation, billing pages and interface behaviour are checked directly, vendor claims are labelled as claims, and third-party figures are attributed with a date and a sample size wherever the source publishes one. The full procedure is in the review methodology.
Elsewhere
Christoph publishes on Facebook and Instagram. For editorial questions, corrections or speaking requests, use the contact page.
Published on this site
Last reviewed 2026-08-02 · questions and corrections: contact page
