{"slug": "i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website", "title": "I built a tool to check what AI agents actually understand about your website", "summary": "A developer built Lagotto Meter, a tool that checks how well a website's structured data (llms.txt, JSON-LD) supports its claims for AI agents. It fetches declared data, passes it to Llama 3.3 70B or Gemini 2.5 Flash, and scores coherence and completeness. The tool is free and available at lake8.dev/lagotto-meter.", "body_md": "There's a gap between what a website says about itself and what an AI agent can actually verify from its structured data.\n\nI got curious about this after noticing that different LLMs were giving inconsistent answers about the same company. Some hallucinated services that didn't exist. Others missed the core business entirely. The common thread: the sites had no llms.txt, incomplete JSON-LD, or structured data that contradicted the homepage copy.\n\nSo I built Lagotto Meter — it fetches llms.txt, llms-full.txt, and JSON-LD from any URL, passes them to Llama 3.3 70B (or Gemini 2.5 Flash as fallback), and scores how well the structured data supports the claims the site makes about itself.\n\nIt's not an SEO tool. It doesn't crawl content. It only reads what you've explicitly declared for AI agents — and checks whether those declarations are coherent and complete.\n\nThe scoring is:\n\nllms.txt presence and quality: 0–25\n\nllms-full.txt: 0–15\n\nJSON-LD [@graph](https://dev.to/graph) completeness: 0–20\n\nrobots.txt / sitemap: 0–10\n\nSemantic coherence (LLM judgment): 0–30\n\nSites with perfect technical structure but no verifiable claims about clients or results get penalized on coherence. The model is looking for proportionality between what you declare and what you can prove.\n\nTry it on your own site or any site you're curious about:\n\n[https://lake8.dev/lagotto-meter](https://lake8.dev/lagotto-meter)\n\nPrompt is public and replicable. Free, 1 analysis per IP per 24h.", "url": "https://wpnews.pro/news/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website", "canonical_source": "https://dev.to/tommy2970/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website-3n09", "published_at": "2026-06-29 19:11:36+00:00", "updated_at": "2026-06-29 19:48:57.829336+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-tools", "developer-tools", "ai-agents"], "entities": ["Lagotto Meter", "Llama 3.3 70B", "Gemini 2.5 Flash", "lake8.dev"], "alternates": {"html": "https://wpnews.pro/news/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website", "markdown": "https://wpnews.pro/news/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website.md", "text": "https://wpnews.pro/news/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website.txt", "jsonld": "https://wpnews.pro/news/i-built-a-tool-to-check-what-ai-agents-actually-understand-about-your-website.jsonld"}}