What problem does it solve? Diagnosing technical SEO issues requires checking dozens of signals across crawlability, indexability, security, performance, and rendering, which is slow and error-prone when done manually. This Skill runs a structured audit across nine categories and produces a prioritized issue list with a technical score. ## Core Features & Use Cases - Nine-Category Audit: Covers crawlability, indexability, security headers, URL structure, mobile optimization, Core Web Vitals (LCP, INP, CLS), structured data, JavaScript rendering, and IndexNow support. - AI Crawler Management: Evaluates robots.txt rules for AI crawlers like GPTBot, ClaudeBot, and Google-Extended, with guidance on blocking training crawlers without losing search visibility. - Prioritized Output: Produces a 0-100 technical score, per-category pass/warn/fail status, and issues grouped into critical, high, medium, and low priority tiers. - Use Case: A site owner notices declining organic traffic and asks for a technical SEO audit of their domain; the Skill checks robots.txt, canonical tags, HTTPS configuration, Core Web Vitals thresholds, and JavaScript rendering risks, then returns a ranked fix list. ## Quick Start Run a technical SEO audit on https://example.com and list the critical issues first.