GEO (Generative Engine Optimization) means shaping content so that generative AI systems — ChatGPT, Perplexity, Claude, Google AI Overviews — can correctly understand, cite and recommend it. Technically that means: semantic HTML5 (article, section, a correct heading hierarchy), schema.org structured data in JSON-LD (ProfessionalService, FAQPage, Person), clear factual statements instead of marketing phrases, FAQ sections with complete self-contained answers, and an llms.txt file in the root directory giving AI crawlers a machine-readable summary of the site.
Entity consistency matters just as much: the same name, services and location across the website, the LinkedIn profile and company registers. AI models build a knowledge graph, and consistent data significantly raises the chance the system names you in answer to a query like "Loxone integrator Slovakia".