Performance for your Cursor-built JavaScript app
Expert performance for JavaScript apps built with Cursor. We audit Cursor-generated JavaScript code for performance issues. From $19.
Cursor issues we find in JavaScript projects
Problems specific to Cursor's code generation patterns when building JavaScript apps.
Exposed API keys in client code
Cursor often places sensitive keys and secrets directly in client-side components or .env files without the NEXT_PUBLIC prefix distinction, making them accessible in the browser.
Missing input validation on API routes
Server actions and API routes generated by Cursor frequently accept user input without sanitization or schema validation, opening the door to injection attacks.
Unhandled async errors
Cursor wraps code in try/catch inconsistently. Failed API calls, database queries, and file operations often crash the app silently or show raw error messages to users.
JavaScript performance issues we check for
Performance-specific JavaScript problems that need attention before production.
Memory leaks from closures and listeners
Event listeners, intervals, and closures that capture large objects are never cleaned up, causing memory consumption to grow over time.
What our performance covers
Everything included when we performance your Cursor JavaScript project.
Start with a self-serve audit
Get a professional performance of your Cursor JavaScript project at a fixed price.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Three steps to get your Cursor JavaScript app production-ready.
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Can you performance my Cursor-built JavaScript app?
Yes. We regularly handle performance for JavaScript projects built with Cursor. We understand Cursor's code patterns and the specific JavaScript issues they introduce. Our review covers the full stack from frontend to backend.
What JavaScript performance issues does Cursor typically create?
Common performance issues in Cursor-generated JavaScript code include: exposed api keys in client code, missing input validation on api routes, unhandled async errors. On the JavaScript side, we often find: memory leaks from closures and listeners.
How much does performance cost for a Cursor JavaScript project?
Start with our $19 automated audit to get a prioritized list of issues. For hands-on performance work on Cursor-built JavaScript projects, we provide a fixed quote after reviewing the audit results. No surprises.
Related resources
Other JavaScript Technologies
Other Cursor JavaScript Services
Get performance for your Cursor JavaScript app
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.