Incrementality testing in SEO sounds simple: make a change, measure the impact, compare it to the control, ship the winner, and iterate. But tests often fall apart before they even start because of flaws in the testing framework. After a decade of leading SEO testing programs with a 70% average success rate, I’ve learned that reliable, actionable results depend on a methodology that can show whether your test actually drove value. Avoid these common mistakes that can undermine your SEO experiments. 1. You’re using the wrong testing methodology A/B testing , or split testing, sends users to different versions of the same page. Some portion of…
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