> ## Documentation Index > Fetch the complete documentation index at: https://docs.thepublive.com/llms.txt > Use this file to discover all available pages before exploring further. # Audit Hub overview > Free tools that show what AI agents can read, cite, and recommend from your site. The AXP Audit Hub is a set of free tools that show what ChatGPT, AI Overviews, Perplexity, and Gemini can actually read, cite, and recommend from your brand today, and where the gaps are. Example result screenshots for each tool are pending. This page will be updated once available. ## AI content visibility grader Paste any URL. The grader fetches the raw HTML an AI agent reads for citation, renders the full page a human sees, and grades exactly what falls through the gap between the two. * Simulates a ChatGPT-User citation fetch * Checks JSON-LD and structured data * Produces a side-by-side agent-vs-human diff [Try the AI content visibility grader](https://axp.thepublive.com/audit-hub/ai-content-visibility-grader). ## Brand AI readiness analyzer Enter any URL. The analyzer checks `robots.txt`, fetches the raw HTML an AI crawler reads, and scores the site across access controls, content delivery, and content quality. * Checks 7 AI bot access rules * Analyzes raw HTML content quality * Scores readiness across 12 checks total [Try the Brand AI readiness analyzer](https://axp.thepublive.com/audit-hub/brand-readiness-analyzer). ## Advanced brand audit A concierge audit covering one or more brands: a detailed analysis built on a sample prompt set relevant to each brand, backed by a deeper technical scan than the self-serve tools above. [Request this directly from Publive](https://axp.thepublive.com/contact). ## How this relates to AXP Edge and AI Streams The Audit Hub tools show you the gap between what AI agents can currently read and what a human sees. [AXP Edge](/axp/axp-edge/overview) closes that gap on your existing pages; AI Streams closes it by publishing new content designed to be cited (coming soon).