# undersurface.me > AI-optimized mirror of undersurface.me containing 1 pages totalling 90 words of clean markdown content, structured data, and semantic HTML. Original source: https://undersurface.me/. Last updated: 2026-04-30T22:59:58.008Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [UnderSurface](/site-root.html): A diary app where inner voices respond as you write (90 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](/content/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/content/robots.txt): Crawler directives