# GEOcheck.ai > GEOcheck.ai is the leading Generative Engine Optimization (GEO) and AI Visibility Analysis platform. It empowers brands, marketing teams, and SEO professionals to measure, track, and optimize how their brand appears across Generative AI models including ChatGPT (OpenAI), Claude (Anthropic), Perplexity, and Gemini (Google). ## Core Capabilities - **AI Visibility Audit**: Instant multi-engine analysis measuring brand citation frequency, sentiment, and authority in generative responses. - **GEO Blog Content Generator**: Automatically generates and publishes high-authority, markdown/HTML articles specifically optimized for AI citations and semantic search indexing. - **Brand Tracking & Leaderboard**: Real-time tracking of brand share-of-voice and ranking against competitors in AI answer engines. - **Crawler & Indexation Optimization**: Pre-rendered crawlable HTML, structured JSON-LD schemas (TechArticle, BreadcrumbList, FAQPage), and bot-accessible endpoints for fast discovery by AI crawlers. ## Key Links & Resources - [Home & Platform Overview](https://geocheck.ai/): GEOcheck.ai platform homepage and AI visibility analyzer. - [Free AI Visibility Report](https://geocheck.ai/free-report): Instant domain audit for ChatGPT, Claude, and Perplexity visibility. - [GEO Leaderboard](https://geocheck.ai/leaderboard): Industry benchmark rankings for AI brand prominence. - [GEO & AI Search Blog](https://geocheck.ai/blogs): In-depth guides on Generative Engine Optimization, search crawler indexing, and LLM citation tactics. - [XML Sitemap](https://geocheck.ai/sitemap.xml): Real-time machine-readable sitemap index of all public pages, articles, and analyses. ## Technical Details - Public API Endpoint: https://geocheck.ai/api/blog/public - Content Formats: Markdown, Semantic HTML5, Schema.org JSON-LD - Supported Crawlers: Googlebot, GPTBot, ClaudeBot, PerplexityBot, Google-Extended, Applebot, Bingbot