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 Validator & Tester
Validate your robots.txt syntax, check Sitemap declarations, and detect indexing blocks on search engine crawlers.
AI Raw HTML Viewer
See the raw HTML a page returns before any JavaScript runs — the pass retrieval crawlers read when deciding whether they can cite it.
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 20 URLs simultaneously to detect noindex directives in HTTP response headers (X-Robots-Tag) and HTML meta tags.
Structured Data & GEO Readiness Checker
Scan a page's Schema.org JSON-LD, check it for validity, and get a GEO readiness score for how citable it is to AI answer engines like ChatGPT, Perplexity, and AI Overviews.
Core Web Vitals & INP Checker
Get real Core Web Vitals data (INP, LCP, CLS) for any URL from Google PageSpeed Insights — real-user field data plus lab diagnostics, free.
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.