# The AO Audit — Answer Optimization > The AO Audit is a free interactive Answer Optimization (AO) audit that scores > how visible a business is to AI engines (ChatGPT, Gemini, Perplexity, Google > AI Mode) and AI agents. Nineteen checks across four pillars — Entity, Content, > Code, Agents — returning a 0-100 AO Score and a prioritized fix list. > Companion tool to the paid guide "Be the Answer: The AI-Search Authority > Playbook." Updated July 2026. ## Core content - [The AO Audit](https://aoaudit.com/): run the audit and get your AO Score with a scored, prioritized fix list. - [Sample AO Report](https://aoaudit.com/sample-report.pdf): a real example of the full report, no email required. ## Key facts - Answer Optimization (AO) is the practice of making a business the answer AI engines give: findable, understandable, trustworthy, and transactable to machines. - The AO Score measures whether AI engines can find, understand, cite, and recommend a business, and whether AI agents can complete a booking or purchase with it. - Industry studies find sites with clean structured data are cited up to 3.2x more often in AI answers. - Businesses that are ambiguous or unstructured to machines are not penalized by AI engines - they are simply never mentioned.