AppLeakWatch
Security scanner for Replit apps
Replit gets your app online fast. AppLeakWatch checks what's reachable once it's there.
What usually goes wrong
Secrets that reached the browser
Replit Secrets protect server code, but a value passed to the front end becomes public.
Open API routes
Common addresses like /api/users can return data if a route has no login check.
Debug output left on
Debug and API description pages can give attackers a map of your app.
What else we check
- API keys for Stripe, OpenAI, Anthropic, AWS and others in your public code
- Downloadable .env, .git and database backup files
- API addresses that return data without a login
- SPF and DMARC records that stop people faking your email
- HTTPS redirects, certificates and browser security headers
How it works
Add your domain, prove you own it with one small change, and get a report with a letter grade and every check we ran. Scans only read public addresses and never change anything. No scan can prove an app is secure, but it can find the mistakes strangers look for first.
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