
React
JavaScript Framework
PHP
Backend FrameworkReact and PHP are both popular choices, but they serve different needs. React is a JavaScript Framework with a traditional, manual approach to building, while PHP is a Backend 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 React vs PHP — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
| Category | JavaScript Framework | Backend Framework |
| AI Score | 40/100 — No-Code / Visual Builder | 10/100 — Unknown |
| Detection Signals | 14 patterns | 1 patterns |
| Script Detection | 6 patterns | — |
| CDN Detection | 4 domains | — |
| Header Detection | — | 1 headers |
| Sites Detected | 1,904 scans | 6,738 scans |
| Best For | Professional websitesTry React → | Professional websitesTry PHP → |
| Official Website | Visit | Visit |
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.
Backend Framework
PHP is a backend framework with an AI Score of 10/100 (Unknown). Our detection engine uses 1 signal patterns to identify PHP-built sites.
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.
PHP is the server-side scripting language underlying a huge share of the web — not a framework itself, but the runtime that WordPress, Laravel, Symfony, and countless custom applications execute on. AIWebsiteDetector surfaces bare PHP as a technology (distinct from any specific framework built on top of it) via the `X-Powered-By: PHP/x.x` response header PHP's built-in web server support sends by default, which reveals the language and often the exact version in use even when no more specific framework fingerprint matches.
Choose React if…
Choose PHP if…
Our Pick — Based on 8,642+ detections
Detected 4× more often than React across our database of scanned sites.
Was this helpful?
Curious if a website uses React or PHP? Scan it now — free.