What Can I Test?

VibeTester works with ALL web frameworks - React, Next.js, Django, Flask, FastAPI, and more!

Framework-Agnostic Testing

Short Answer: Yes, Absolutely!

VibeTester can test any web application regardless of backend framework, because it tests the final rendered output (HTML, CSS, JavaScript) that reaches the browser.

How VibeTester Works

VibeTester doesn't care about your backend technology. It tests your application like a real user's browser would:

Your App (Any Framework) HTTP Response Browser Rendering VibeTester Tests

What VibeTester Tests:

  • HTTP responses - Status codes, headers, redirects
  • Rendered HTML - DOM structure, meta tags, semantic markup
  • CSS/Styling - Visual design, responsiveness, accessibility
  • JavaScript behavior - Page interactions, dynamic content

Plus Security & Performance:

  • Security headers - HTTPS, CSP, HSTS, X-Frame-Options
  • Performance metrics - Load time, response time, file sizes
  • SEO elements - Meta descriptions, Open Graph tags, sitemaps

Framework Compatibility

Frontend Frameworks 100% Compatible

Framework Compatible Why It Works
React ✅ Yes Tests rendered HTML/DOM after React hydration
Next.js ✅ Yes Tests SSR/SSG output, client-side features
Vue.js ✅ Yes Tests compiled Vue components in browser
Angular ✅ Yes Tests rendered Angular application
Svelte ✅ Yes Tests compiled Svelte output
Solid.js ✅ Yes Tests reactive UI rendering

Backend Frameworks 100% Compatible

Framework Language Compatible What Gets Tested
Django Python ✅ Yes HTTP responses, templates, security headers
Flask Python ✅ Yes API responses, rendered pages
FastAPI Python ✅ Yes API endpoints, OpenAPI docs page
Express Node.js ✅ Yes Server responses, middleware results
Ruby on Rails Ruby ✅ Yes MVC output, asset pipeline
Laravel PHP ✅ Yes Blade templates, API responses
Spring Boot Java ✅ Yes REST APIs, Thymeleaf templates

Supported Hosting Platforms

Vercel
Netlify
Cloudflare Pages
Heroku
AWS
Google Cloud
Azure
DigitalOcean
Custom Domain

Real-World Examples

Testing a Next.js App

Your App: https://myapp.vercel.app
✅ Page loads (Status: 200)
✅ HTTPS enabled (Vercel SSL)
✅ Viewport meta tag present
✅ Page title: "My Next.js App"
✅ Meta description exists
✅ Open Graph tags present
✅ Images have alt text
✅ Fast response time (145ms)
✅ Security headers (3/4 found)
⚠️ Content-Security-Policy missing
✅ Valid HTML structure
✅ Next.js hydration successful

Testing a Django App

Your App: https://mysite.herokuapp.com
✅ Page loads (Status: 200)
✅ HTTPS enabled (Heroku SSL)
✅ Django security middleware active
✅ CSRF protection working
✅ Session cookies secure
✅ Static files served (WhiteNoise)
✅ Database queries efficient
✅ Template rendering fast
⚠️ Debug mode check (should be False)
✅ Admin panel protected

Testing a React SPA

Your App: https://app.example.com
✅ React app loads (root element)
✅ Client-side routing works
✅ State management functional
✅ API calls successful
✅ Error boundaries present
✅ Loading states handled
✅ Responsive design working
✅ Performance metrics good

Testing a FastAPI App

Your App: https://api.example.com
✅ API root responds (Status: 200)
✅ HTTPS enabled
✅ CORS headers configured
✅ OpenAPI docs accessible (/docs)
✅ Redoc available (/redoc)
✅ Health check works (/health)
✅ JSON responses valid
✅ Response time fast (87ms)
⚠️ Rate limiting not detected

Important Limitations

What VibeTester CAN Test

  • Public URLs - Any publicly accessible website
  • Authenticated pages - After login (with session cookies)
  • Dynamic content - After JavaScript execution
  • API responses - RESTful, GraphQL, etc.
  • SSR/SSG - Server-side rendered pages
  • SPA - Single-page applications
  • Static sites - HTML/CSS/JS files

What VibeTester CANNOT Test

  • Localhost - Only works with deployed apps
  • Backend logic - Only tests HTTP responses, not internal code
  • Database queries - Only tests query results in responses
  • Server logs - No access to backend logs
  • WebSocket - Real-time protocols (not HTTP)
  • Native apps - iOS/Android apps (web only)

Why This Works Universally

HTTP is Universal

Every web framework responds to HTTP requests. VibeTester sends GET requests, receives responses. Framework doesn't matter—HTTP is the protocol.

HTML is Common Language

React compiles to HTML. Django templates render to HTML. FastAPI can serve HTML. VibeTester tests the final HTML output.

Browser APIs are Standard

All frameworks output code that runs in browsers. VibeTester tests browser behavior (DOM, CSSOM, JavaScript). Standards-compliant testing works everywhere.

Ready to Test Your App?

Try VibeTester now - works with React, Next.js, Django, Flask, FastAPI, and more!

Start Testing View Demo