Many affiliate sites use one landing page to promote an offer, but sometimes a small change can make a big difference in how many people click or buy. That is where A/B testing comes in. It simply means creating two versions of the same page and showing each one to different visitors. One page might have a different headline, button color, or product image. After some time, you check which page gets more clicks or sales. The version that performs better becomes the main page. What simple things do people usually test first on affiliate pages?