Cernitur is a deterministic Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) platform developed by Cernitur Technologies LLC. It provides zero-dependency CLI linters, machine-readable /llms.txt manifests, and 5-dimension Schema.org knowledge graph infrastructure to ensure enterprise websites are accurately crawled, parsed, and cited across Google AI Overviews, OpenAI Search, Perplexity, and Claude—with zero recurring monthly subscription costs.