ChillScan
Replit · cloud IDE and AI agent

Scan your Replit site before you ship

Replit Agent can build and deploy apps in many stacks. Deployments are reachable on a replit.app domain or your own, so what's public is whatever your server sends to the browser.

Free · No signup · Only scan sites you own or have permission to test

Common Replit launch issues

🛡️ Security

  • Replit Secrets keep keys out of your code, but a key can still leak if front-end code reads it or the server echoes it into a page.
  • Security headers depend on your framework; a plain Express or Flask server sends almost none by default.
  • Session cookies set by your own server code may be missing Secure or HttpOnly flags.

🔎 SEO

  • Apps built as single-page front ends may be blank to non-JS crawlers.
  • Titles and meta descriptions are often left at framework defaults.

⚡ Performance

  • Slow server responses can come from heavy work done on each request; check response time after deploying.

What ChillScan checks on your Replit site

ChillScan reads only what a visitor's browser receives. It doesn't run JavaScript and can't scan pages behind a login or bot protection. See every check → · See a sample deep report →