Large language model (LLM) visibility tools track brand mentions, citations, and share of voice across answer engines. According to Digitaloft , 80% of users rely on zero-click results at least 40% of the time, meaning they often get what they need directly from a search engine results page (SERP) or an AI-generated answer. That behavior can leave marketers with fewer on-site signals such as clicks, scroll depth, and engagement rate.