Free Technical SEO & GEO Tools
Diagnostic utilities built to help webmasters, developers, and marketers verify search engine readiness and AI crawler access instantly.
Available Diagnostics
Run standalone checks in seconds — no registration or installation required.
AI Crawler Access Checker
Check if your website blocks or allows major AI crawlers (GPTBot, ChatGPT-User, ClaudeBot, PerplexityBot, Google-Extended, Bytespider, CCBot).
Robots.txt & Sitemap Tester
Validate your robots.txt syntax, check Sitemap declarations, and detect indexing blocks on search engine crawlers.
AI Crawler No-JS Page Renderer
Simulate what AI crawlers (GPTBot, ClaudeBot, Perplexity) see when client-side JavaScript execution is disabled.
LLMs.txt Standard File Generator
Generate compliant llms.txt and llms-full.txt Markdown files for your website to optimize Generative Engine Optimization.
Batch Noindex Meta & Header Checker
Batch test up to 5 URLs simultaneously to detect noindex directives in HTTP response headers (X-Robots-Tag) and HTML meta tags.
Need a full website audit?
Our free micro-tools test single configurations. Run a full SearchVitals audit to analyze over 200+ technical, performance, and GEO checkpoints automatically.