UsefulShelfFree tool
Can search and AI tools read your app?
Many single-page apps ship an empty <div id="root">. Crawlers that do not run JavaScript see a blank page. Paste a URL to see what they actually get.
What we check
- Raw HTML content. Word count and whether the app root is empty before JavaScript runs.
- Title, description, H1 and canonical. The basics every page needs.
- noindex. In the robots meta tag and the X-Robots-Tag header.
- robots.txt. Search access for Googlebot, Bingbot, OAI-SearchBot and Claude-SearchBot. Training crawlers are shown separately.
- Sitemap and Open Graph. Discovery and link previews.
- Platform detection. A specific fix for apps hosted on Lovable, Bolt, Vercel, Replit and Base44.
This is a technical readiness check, not a prediction of rankings or AI recommendations. Allowing a search crawler is separate from allowing model training.
Each report gets a shareable link. The checker fetches one page as UsefulShelfBot and respects robots.txt.