
Next.js
JavaScript Framework
React
JavaScript FrameworkNext.js and React are both popular choices, but they serve different needs. Next.js is a JavaScript Framework with a traditional, manual approach to building, while React is a JavaScript Framework that prioritises developer or designer control.
Below you'll find a side-by-side breakdown of detection signals, AI scores, and technical fingerprints — plus our honest take on which builder wins for different use cases.
How we detect Next.js vs React — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
| Category | JavaScript Framework | JavaScript Framework |
| AI Score | 40/100 — No-Code / Visual Builder | 40/100 — No-Code / Visual Builder |
| Detection Signals | 5 patterns | 14 patterns |
| Script Detection | 2 patterns | 6 patterns |
| CDN Detection | — | 4 domains |
| Header Detection | 1 headers | — |
| Sites Detected | 30,395 scans | 698 scans |
| Best For | Professional websitesTry Next.js → | Professional websitesTry React → |
| Official Website | Visit | Visit |
JavaScript Framework
Next.js is a javascript framework with an AI Score of 40/100 (No-Code / Visual Builder). Our detection engine uses 5 signal patterns to identify Next.js-built sites.
JavaScript Framework
React is a javascript framework with an AI Score of 40/100 (No-Code / Visual Builder). Our detection engine uses 14 signal patterns to identify React-built sites.
Next.js is a React-based web framework developed by Vercel, widely adopted by developers and engineering teams building production-grade web applications that require server-side rendering, static site generation, or hybrid routing architectures. AIWebsiteDetector.com identifies Next.js deployments through a combination of 2 script patterns, 2 HTML patterns, and 1 HTTP header — a multi-signal approach that yields reliable identification even when sites are deployed behind CDNs or custom domains. Common detection markers include inline script references to Next.js chunk files, characteristic `__NEXT_DATA__` JSON blocks embedded in page HTML, and the `x-powered-by: Next.js` HTTP response header present on many default deployments. The HTML-level patterns are particularly robust, as the `__NEXT_DATA__` script tag is injected server-side and persists across most configurations unless explicitly suppressed. Next.js sites are most frequently hosted on Vercel's infrastructure, though deployments on AWS, Netlify, and self-hosted Node.js servers are common — making header-based signals less universally reliable than the DOM and script pattern checks. The framework's official documentation and resources can be found at [nextjs.org](https://nextjs.org).
React is a declarative JavaScript library developed by Meta for building interactive user interfaces, widely adopted by startups, enterprise teams, and independent developers to power everything from single-page applications to complex web platforms. AIWebsiteDetector.com identifies React-powered sites through a combination of 4 distinct script patterns, 4 CDN domains, and 3 HTML patterns — including characteristic data attributes and DOM markers that React injects during rendering. These signals are cross-referenced against known React build artifacts and CDN delivery signatures to produce reliable detections across both production-minified and development builds. Because React is a frontend library rather than a full hosting platform, it frequently appears alongside other detectable technologies such as Next.js, Vite, or Webpack, making co-detection a common and useful signal for refining confidence scores. The official React documentation and release distribution are maintained at [react.dev](https://react.dev), and its presence on a site is technology-agnostic with respect to hosting provider — meaning React is detectable regardless of whether a site runs on Vercel, Netlify, AWS, or a self-hosted server.
Choose Next.js if…
Choose React if…
Our Pick — Based on 31,093+ detections
Detected 44× more often than React across our database of scanned sites.
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