React is the most widely-used JavaScript library for building user interfaces, developed and maintained by Meta. It introduced a component-based architecture and a virtual DOM for efficient updates. React powers millions of websites and applications, often paired with frameworks like Next.js, Remix, or Gatsby.
13+
Detected Sites
Website Builder
Category
65%
AI Score
11
Fingerprints
Detect React on any website:
Detected Websites
Real sites found by our scanner using React
Related Technologies
Other Website Builder frequently used alongside React
Frequently Asked Questions
What is React?
React is the most widely-used JavaScript library for building user interfaces, developed and maintained by Meta. It introduced a component-based architecture and a virtual DOM for efficient updates. React powers millions of websites and applications, often paired with frameworks like Next.js, Remix, or Gatsby.
How do you detect React on a website?
Our scanner analyzes 11 technical fingerprints including react.development.js or react.production.min.js in page scripts and __REACT_FIBER_TRACING__ or __reactFiber attributes in DOM to identify React usage with high accuracy.
Which websites use React?
Thousands of websites use React across various industries. Our real-time scanner continuously discovers new React deployments — use the search above to detect any website.
Is React popular?
React is a widely adopted Website Builder in the website building space. Our scanner detects it regularly across scanned domains.
How We Detect React
- react.development.js or react.production.min.js in page scripts
- __REACT_FIBER_TRACING__ or __reactFiber attributes in DOM
- React DevTools hook detection in window object
- Technology stack entry listing React as the framework
- JSX-compiled output patterns in page JavaScript bundles