> ## Documentation Index > Fetch the complete documentation index at: https://docs.getwaio.com/llms.txt > Use this file to discover all available pages before exploring further. # Welcome to WAIO Docs > Plain-language documentation for the WAIO methodology and the WAIO Engine audit. Your website has three audiences now: people, search engines, and AI systems. WAIO (Website AI Optimization) is the methodology for making your site work for all three. These docs exist for one reason: when the WAIO Engine audit tells you something about your site, you should be able to understand it without a technical background. Every audit issue gets a plain-language explanation here, with links to deeper technical references when you want them. ## Where to start The methodology in five minutes. AEO, GEO, AI SEO, MCP readiness, and why they're one problem. The audit tool. What the free audit checks, what Pro adds, and how to run one. What your score means, how severity levels work, and what to fix first. One page per audit issue: what it means, why it matters, how to fix it. ## Haven't run an audit yet? The free WAIO Engine audit takes about a minute and gives you one score across the pillars that matter for people, search engines, and AI systems. No credit card, no signup wall. See where your site stands today at app.getwaio.com.