Lovable Production Readiness Checklist: 20 Checks Before You Launch

By Jai Mittal, CTO · August 16, 2026

Lovable generates production-quality React apps backed by Supabase. The code works. The features are there. But there is a gap between "the app works in preview" and "this app is ready for real users, real traffic, and real adversaries."

This checklist covers the 20 most critical checks, organized by the four dimensions that determine whether a Lovable app is truly production ready.

Security checklist (8 items)

• Supabase row-level security enabled on ALL tables — not just the ones you remember. CVE-2025-48757 exposed data on 170+ Lovable apps that had RLS off on one table.
• No API keys in the frontend JavaScript bundle. Open your live app, inspect source, search for key patterns. gitleaks finds them in your git history.
• Service role key is NOT in the frontend. The SUPABASE_SERVICE_ROLE_KEY bypasses RLS. If it is in your Vite config, every user has admin database access.
• All Supabase Edge Functions require authentication — check every function in the Supabase dashboard.
• HTTP security headers set: CSP, HSTS, X-Frame-Options, X-Content-Type-Options. Check with the free headers scanner.
• Rate limiting on login, signup, and any API route that triggers an external call or database write.
• CORS policy is not a wildcard (*) on your API endpoints.
• No vulnerable npm dependencies: run npm audit from your project directory.

Reliability checklist (5 items)

• User-facing error messages show a safe message, not raw JavaScript errors or Supabase error objects.
• Database writes that must succeed together are in a single Supabase transaction.
• External API calls (OpenAI, Stripe, etc.) have try/catch and handle timeouts gracefully.
• Form submissions are protected against double-submission (disable button on submit, check state).
• Realtime subscriptions unsubscribe when the component unmounts — check for Supabase channel leaks.

Performance checklist (4 items)

• List pages do not load one database query per row. Check Supabase logs for N+1 patterns.
• Foreign key columns used in WHERE clauses have database indexes.
• JavaScript bundle is under 500 KB gzipped. Check in browser DevTools → Network tab.
• Images are compressed and served in WebP or AVIF format, not uncompressed PNG.

Monitoring checklist (3 items)

• Sentry (or equivalent) is installed and verified — throw a test error and confirm it appears in your Sentry dashboard.
• Uptime monitoring is set up on the root URL and at least one authenticated endpoint.
• An alert fires to email or Slack when the app is down.

How to run this checklist efficiently

The free LRC scan covers the security headers, rate limiting, exposed endpoints, and monitoring presence items in about 30 seconds from your live URL. The $499 Launch Readiness Audit covers all 20 items with specific line-level findings and a prioritized fix list. Either is faster than working through this list manually, and the audit gives you time estimates for each fix.

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