Maxim Mironjuk
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May 31, 2025
Anyone changing title tags, internal linking, or structured data would ideally like to know beforehand whether the change actually drives more organic traffic. Classic A/B testing from the conversion optimization toolbox, where users are randomly assigned to one of two variants, does not work for search engines, because Google only ever shows one version of a given URL. This article explains why, how page cluster testing works as an alternative, and how tools like SplitSignal or SearchPilot put that methodology into practice.