Verified Insights · Editorial Board
101 articles · continuously updated since 2007
Electricians scored 50/100 in our AI Citation Study. UI/UX Design Agencies scored 56. Six points separate a licensed electrician from a design agency that shaped Google's interface. The mechanism is identical: AI engines verify businesses through directory profiles. Only the directories differ by vertical.
Yelp got 115 AI mentions across 750 queries. Expertise.com got 113. They're nearly tied overall but dominate completely different verticals: Yelp owns local and healthcare, Expertise owns tech and professional services. Which one matters for your business also depends on which AI engine your buyers use — ChatGPT mentions Expertise 77 times, Claude prefers Yelp 57 times.
Claude writes comparison tables and names 14.7 businesses per query. ChatGPT writes numbered lists and names 9.1. Perplexity cites sources and names 8.4. Same question, three completely different answers — and the AI engine your buyers use determines the format, the directories cited, and even whether specific providers get named at all.
Ask an AI engine how to find a trustworthy plumber and it tells you to check Yelp. Ask about a Shopify agency and it says Clutch. Ask about a cosmetic surgeon and it says RealSelf. The data from 750 AI queries across 50 categories reveals a clear pattern: there is no universal best directory, and businesses on the wrong one for their vertical are invisible to AI search.
Claude names 14.7 businesses per query. ChatGPT names 9.1. Perplexity names 8.4. Original DirJournal research across 750 structured queries and 50 commercial categories reveals which brands, directories, and verticals AI engines actually cite when buyers ask, plus the full downloadable dataset.
Query fan-out is a retrieval technique where an AI search system breaks a single prompt into multiple sub-queries, runs them in parallel, and merges the retrieved results into one synthesized answer. Your page can earn a citation for a sub-query the user never typed and you never targeted. This guide covers how it works, and then shows how to extract the actual fan-out queries yourself, for free, and what to do with them.
GTM AI is the application of artificial intelligence across a company's go-to-market motion: identifying buyers, scoring and routing leads, personalizing outreach, forecasting revenue, and retaining customers. It is an approach that spans multiple tool categories, not a single product you can buy. Every top-ranking definition is written by a vendor; this guide gives you the price reality, the four-layer stack, and the disqualification criteria vendor content structurally cannot publish.
For nearly two decades, link accumulation drove directory authority. In 2026 that playbook is obsolete — what matters now is entity authority, whether ChatGPT, Perplexity, and Gemini can confidently identify your business as a real, verifiable thing. Here are the eight non-negotiable data points every listing now needs.
