Citation Gap

A Citation Gap is a competitive analysis metric used in Answer Engine Optimization (AEO) to identify exactly which high-authority third-party websites an AI model (like Perplexity) consistently uses as sources for a specific topic, but where your brand is currently completely unmentioned. For example, if Perplexity always cites G2, Capterra, and Forbes when asked about “CRM software,” and your competitors are listed on those sites but you are not, you have a massive Citation Gap. Closing this gap requires aggressive Digital PR and outreach to ensure your brand is injected into the exact domains the AI already trusts.

Citation Gap Simplified

A Citation Gap is when ChatGPT constantly uses a specific news website to answer questions about your industry, but your company is never mentioned on that news website. To fix the gap, you have to contact that news website and force them to write about you, so the AI finally sees you.