Website Technology Detector
Detect what technologies, CMS, frameworks, analytics, and hosting any website uses. Free alternative to BuiltWith and Wappalyzer. No signup required.
Detect Technologies
Enter a website URL to scan its HTML source and detect the technology stack it uses.
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About Website Tech Stack Detection
Why Detect a Website's Tech Stack?
Understanding what technologies a website uses is valuable for developers, marketers, and business analysts. Whether you are evaluating a competitor, vetting a potential partner, or planning a migration, knowing the underlying tech stack gives you actionable insights. Developers use tech detection to learn what frameworks power high-performing sites. Marketers use it to understand which analytics and advertising platforms competitors rely on. Security teams audit third-party scripts to assess risk exposure. Agencies use this data to scope projects accurately and recommend the right tools for the job.
CMS Market Share in 2026
WordPress continues to dominate the content management space, powering over 43% of all websites globally. Shopify has solidified its position as the leading ecommerce platform, now running more than 4.7 million stores worldwide. Magento (Adobe Commerce) remains the go-to for enterprise retailers needing complex B2B and multi-store setups. Headless CMS platforms like Contentful, Strapi, and Sanity have gained significant traction, especially among teams building with React and Next.js on the frontend. Wix and Squarespace continue to serve the small business and portfolio segment, while Ghost and Webflow appeal to content-focused publishers and designers who want visual control without sacrificing performance.
How Technology Detection Works
This tool fetches the raw HTML source of any public URL through a server-side proxy and analyzes it for known technology signatures. Each technology leaves fingerprints in the HTML: WordPress sites include paths like /wp-content/ and /wp-includes/. React applications render into a div#root or div#__next. Google Analytics injects gtag.js or analytics.js. Cloudflare adds specific response headers and JavaScript challenges. The detector matches these patterns against a curated database of over 80 technologies across 10 categories. Each match includes a confidence indicator showing whether the signal came from HTML source analysis or header inspection. Note that some technologies can only be detected through HTTP response headers, which the proxy may not always forward.
Popular Tech Stacks
The LAMP stack (Linux, Apache, MySQL, PHP) remains one of the most widely deployed combinations, especially for WordPress and Magento sites. The MERN stack (MongoDB, Express, React, Node.js) powers many modern single-page applications and SaaS products. JAMstack (JavaScript, APIs, Markup) has become the standard for performance-focused sites using static site generators like Next.js, Gatsby, or Hugo deployed on Vercel or Netlify. Enterprise organizations often run hybrid stacks combining a headless CMS backend with a React or Vue frontend, served through a CDN like Cloudflare or Fastly. Understanding these common patterns helps you quickly assess the complexity and maintainability of any web project.
Competitive Analysis with Tech Detection
Tech stack detection is a core part of competitive intelligence. By scanning competitor websites, you can identify which analytics platforms they use to track conversions, which A/B testing tools they rely on, and which advertising networks they participate in. If a competitor recently switched from Google Analytics to a privacy-focused tool like Plausible or Matomo, that signals a strategic shift worth noting. Spotting that a rival ecommerce site runs on Shopify Plus versus a custom Magento build tells you about their operational complexity and likely team size. Pair this tool with our SSL Checker, DNS Lookup, and Whois Lookup for a complete picture of any website's infrastructure.