Free tools.
Free tools we use in our own work. No sign-up, and your inputs stay in your browser.
11 tools
No tools match that search. Try a shorter word, such as "ROAS" or "robots".
Tracking & Analytics
2 toolsTechnical SEO & AI Search
6 tools- robots.txt Generator Build a robots.txt with AI crawler controls, then test any file with the RFC 9309 longest-match rule. Open tool
- llms.txt Generator Write an llms.txt file in the llmstxt.org format, with a live preview and validation. Open tool
- Redirect Checker Follow every redirect hop, see status, Location and HSTS at each step, and flag loops, long chains and HTTPS downgrades. Open tool
- AI Search Readiness Checker Score a page for AI search readiness: crawler access per bot, robots.txt, llms.txt, first-response content and structured data. Open tool
- Schema Validator Validate JSON-LD against required and recommended properties for Organization, Article, Product, FAQPage, LocalBusiness and more. Open tool
- Meta Tag and Open Graph Checker Check title and description widths, canonical, robots, hreflang and Open Graph tags, with Google, social and WhatsApp previews. Open tool
Want this done across your stack?
The tools cover one check at a time. subimpact network engineers the full stack: tracking, search, automation and reporting.