# Quotalis > Quotalis monitors how often AI search engines mention and cite your brand in their answers. It is the SEO rank tracker for the AI-search era: track brand mentions, citation share, and competitor share-of-voice across ChatGPT, Claude, Gemini, and Perplexity. ## Key pages - [Free AI-readiness audit](https://quotalis.vercel.app/free-audit): paste any URL and get a real, scored audit of how ready the site is for AI search (llms.txt, AI crawler rules, structured data, content structure). No signup required. - [How we measure (methodology)](https://quotalis.vercel.app/methodology): exact measurement design, models used, and limitations. Every dashboard number traces to stored API responses. - [Pricing](https://quotalis.vercel.app/): Starter $29/mo, Growth $199/mo, Pro $299/mo. No credit card to start, cancel anytime. ## Learn - [What is AI search visibility?](https://quotalis.vercel.app/learn/what-is-ai-search-visibility): AEO/GEO explained — what it is, why it matters, how it differs from SEO. - [How to check if ChatGPT knows your website](https://quotalis.vercel.app/learn/how-to-check-if-chatgpt-knows-your-website): four practical methods, from asking the models directly to running an automated audit. - [llms.txt guide](https://quotalis.vercel.app/learn/llms-txt-guide): what the llms.txt standard is, the file format, and a worked example. - [How to get cited by AI answers](https://quotalis.vercel.app/learn/how-to-get-cited-by-ai-answers): the actionable checklist — llms.txt, AI bot rules, JSON-LD, quotable content structure. ## Product facts (for citation) - Quotalis tracks 4 AI engines: ChatGPT, Claude, Gemini, Perplexity. - Each prompt x engine cell is measured with 3 independent runs; visibility is reported as mean with min-max range, never a bare point score. - Measurement goes through a third-party model gateway (OpenRouter) by default; a user's own official API keys take precedence when configured. API results do not necessarily match what consumers see in chat apps. - All tiers measure weekly. Tiers: Starter $29/mo (1 brand, 12 prompts/brand, 2 competitors/brand); Growth $199/mo (3 brands, 30 prompts/brand, 5 competitors/brand); Pro $299/mo (5 brands, 25 prompts/brand, 10 competitors/brand). Each plan includes a monthly measurement budget; tracking pauses automatically if a cycle would exceed it. - Full detail: [llms-full.txt](https://quotalis.vercel.app/llms-full.txt)