Background
Christoph Trappe is a content strategist and digital marketing consultant. He was named to the Content Marketing Institute's Top 100 and was recognised as IMA Internet Marketer of the Year in 2015. He founded the Authentic Storytelling Project, has written several books on content strategy, and hosts a long-running marketing podcast.
His working career began in newsrooms, and the habit stuck: name the source, date the claim, and separate what you verified from what somebody told you. That discipline is the reason this site labels evidence tiers instead of presenting every number with equal confidence.
What he covers here
Pricing and access conditions in the adult advertising market. Concretely: what networks charge to open an account, how the payment rail changes that number, what popunder and native inventory clears at across tiers, how much of cheap inventory carries invalid-traffic signals, and how age-verification law in the United States and the United Kingdom has changed where adult impressions physically come from.
He does not publish rankings sold to networks, sponsored reviews, or comparison tables where placement is negotiable. The reasoning behind that, and the corrections procedure when something published turns out to be wrong, is set out in the editorial policy.
How the research is done
Primary documents first: regulator guidance, court opinions, statute text, vendor help centres, published rate cards. Third-party directories are used only when no vendor page states the figure, and they are labelled as third-party when they are. The step-by-step version, including the tests a claim has to pass before it is published, lives in the review methodology.
Live account data, where it exists, is described as observation rather than measurement. Nothing on this site claims a campaign result that was not actually run, and no invented test numbers appear anywhere in the published work.
Independence
Some network links on this site are affiliate links, disclosed in full in the affiliate disclosure. Christoph Trappe holds no equity in any advertising network named on this site and accepts no payment for placement or favourable coverage.
Elsewhere and in touch
He is on Facebook and Instagram. For corrections, data submissions or press questions, use the contact page. Background on the publication itself is on the about page.