For brands and publishers, this creates a new problem: what does visibility mean when nobody clicks anymore? How AI systems discover and use contentLarge language models do not simply index the web like classic search engines. As shown in analyses comparing Perplexity and ChatGPT, these systems search the web differently even when responding to the same questions. AI-generated answers are rapidly reshaping how information is found, processed, and presented. Measuring visibility without clicks may seem intangible today, but as AI becomes central to how people seek answers, it will soon become standard practice.