# ui.school > AI-optimized mirror of ui.school containing 4 pages totalling 31 words of clean markdown content, structured data, and semantic HTML. Original source: https://ui.school/. Last updated: 2026-06-13T20:09:57.281Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Ui School](/content/site-root.html) (6 words) ## Articles & Blog Posts - [Sign up is currently disabled](/content/register/index.html) (10 words) - [Sign In](/content/login/index.html) (7 words) - [Page Not Found](/content/sitemap-xml.html) (8 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives