Banner ad A/B testing: one useful question at a time
Plan a focused experiment, choose the primary outcome, keep the comparison fair, and report uncertainty honestly.
Read the field noteBanner ads | Ad sizes | Display advertising | Adtech | Affiliate marketing | Lead generation
Field Notes / Category
Learn how to define measurements, organize campaign links, and plan focused creative experiments. Use the examples as working methods rather than universal benchmarks.

Plan a focused experiment, choose the primary outcome, keep the comparison fair, and report uncertainty honestly.
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Create a shared naming convention, maintain a link register, and test campaign destinations without exposing personal data.
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Understand the arithmetic, denominators, and limitations behind common display-advertising performance metrics.
Read the field noteStart with the field note that best matches your current decision. Use its examples to inspect the brief, creative, destination, or reporting process in front of you. Keep the assumptions visible and adapt the method to your own campaign rather than treating a worked example as a performance target.
Then open the related reference pages for formats, terminology, or a practical handoff checklist. Save the version you use and record the next question your review needs to answer.