One benefit of testing cookieless geo-experiments is that it doesn’t rely on cross-site tracking for data.

• It’s easy to implement and execute.
• It requires user-level data for experimentation.
• It’s a good fit for most clients to get quick results.
• It doesn’t rely on cross-site tracking for data.

The correct answer is: It doesn’t rely on cross-site tracking for data

Explanation: Cookieless geo-experiments benefit from not relying on cross-site tracking, which aligns with privacy regulations and reduces dependency on third-party cookies. This approach leverages aggregated data from specific geographic locations, allowing advertisers to measure the impact of their campaigns without infringing on user privacy. This method ensures compliance with privacy laws while still providing valuable insights.

Reference article: Measure Data Accurately and Evolve Your Strategy