Citability is a domain intelligence platform that measures AI visibility, citation readiness, and agentic commerce readiness for any website. The free scanner checks 51 protocol endpoints across ADP (AI Discovery Protocol), MCP (Model Context Protocol), llms.txt, robots.txt AI crawler rules, Schema.org markup, and content extractability, returning a 0 to 100 score in about 15 seconds. The Citation Readiness V2 engine evaluates 44+ metrics across five evidence-based pillars: Authority (Common Crawl ranks across 607M domains), Performance (Core Web Vitals), Content (extractability and structure), Social (Reddit and review presence), and Agentic (llms.txt, MCP, AI crawler rules). Two open source CLIs accompany the platform: llms-txt-validator and adp-audit-cli. Built for the AI-first web, where being citable matters more than being ranked.