technical-seo-checker

Use this skill when the user asks about technical SEO audit, check page speed, Core Web Vitals, slow LCP, CLS problems, INP issues, crawl errors, indexing problems, robots.txt checks, XML sitemap errors, hreflang issues, canonical tag problems, HTTPS not working, mobile SEO, JavaScript rendering, or a site health check. It performs comprehensive technical SEO audits: Core Web Vitals (LCP/CLS/INP/TTFB), crawlability, indexability, mobile-friendliness, HTTPS/HSTS security, URL structure, redirect chains, robots.txt, XML sitemaps, hreflang, canonical tags, and structured data validation. Produces a scored technical health report (0–100) with critical/high/medium issue triage and a prioritized implementation roadmap. Integrates with Google PageSpeed Insights, Google Search Console, crawling tools, or manual inspection. For content element issues, see on-page-seo-auditor. For link architecture, see internal-linking-optimizer.