# TrustAI GEO > Free GEO (Generative Engine Optimization) score: checks how visible a website or brand is to AI assistants such as ChatGPT, Claude, Perplexity and Google AI Overviews. Part of trustai.center. ## What it does - Free scan, no signup: enter a domain or brand name at https://geo.trustai.center - Checks AI crawler access in robots.txt (GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended, CCBot…), llms.txt, schema.org JSON-LD, headings/FAQ structure, meta tags, sitemap, speed and indexability - Runs a live AI mention test with two AI models - Returns a GEO score out of 100, an Invisibility Risk label (Low, Moderate, High, Critical) and the top 5 fixes, with a shareable result page ## Pricing - Free scan: €0 - Pro: €19/month — track up to 20 prompts, weekly re-scan, alerts. Card (Stripe) or USDC/USDT on Base, Solana, BNB Chain ## Links - Home: https://geo.trustai.center/ - Pro plan: https://geo.trustai.center/pro - Scan API: POST https://geo.trustai.center/api/scan {"q":"example.com"} - Parent site: https://trustai.center