
Google Says You Don't Need llms.txt. Here's the Catch.
Google says llms.txt is unnecessary. Chrome Lighthouse audits it anyway. We fact-checked five studies on what llms.txt really does for AI visibility in 2026.
Also known as: AEO Audit Tool, Answer Engine Page Scanner
Free tool to score any web page for answer engine readiness. Analyzes speakable schema, answer-first content structure, structured data quality, data extractability, content freshness, and entity authority across 6 weighted categories.
Canonical resource
/tools/aeo-page-auditorWhat is Answer Engine Optimization (AEO)?
Answer Engine Optimization (AEO) is the practice of structuring web content so AI engines can extract and cite it as a complete answer. AEO focuses on extraction-friendly formatting: BLUF paragraphs, FAQPage schema, HTML comparison tables, and speakable schema.
How do I get cited by Perplexity?
Perplexity cites sources it crawls + ranks for the live query. To get cited: allow PerplexityBot in robots.txt, ship answer-first content (FAQPage schema, BLUF paragraphs), and acquire citations from high-authority domains Perplexity already ranks.
What is Generative Engine Optimization (GEO)?
Generative Engine Optimization (GEO) is the practice of structuring web content so AI search engines like ChatGPT, Claude, Perplexity, and Gemini cite it in their responses. Unlike SEO which optimizes for keyword rankings, GEO optimizes for entity recognition, structured data, and citation probability.
Why does Perplexity cite my competitor instead of me?
Perplexity ranks sources per-query by domain authority, content relevance, and recency. If your competitor is cited and you are not, they typically beat you on one of three signals: answer-first content structure, citation accumulation from high-trust domains, or recency of updates on the relevant page.
How do I write content that ChatGPT will cite?
ChatGPT cites content that answers a specific question in 1-3 sentences and comes from a domain it trusts. Five tactics: open every section with the answer (BLUF), use question-shaped H2s, ship FAQPage schema, structure data as HTML tables, and republish with fresh dateModified when claims change.
AEO vs GEO vs SEO: which one matters in 2026?
All three matter, but for different buyer behaviors. SEO captures Google search traffic. GEO builds entity authority that AI engines cite. AEO formats content for extraction by AI answer engines. B2B SaaS teams need all three; consumer brands prioritize SEO; emerging AI-native teams prioritize GEO + AEO.
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Google says llms.txt is unnecessary. Chrome Lighthouse audits it anyway. We fact-checked five studies on what llms.txt really does for AI visibility in 2026.

Reddit is the most-cited source in AI answers. The Reddit Brand Monitor finds what is said about your brand there, scores it, and flags AI-generated seeded posts.

The YouTube Brand Monitor tracks what is said about your brand on YouTube, scores it on five dimensions, and reads the actual transcripts so you see the coverage AI already hears.