Tech Stack Detector
Detect what technologies any website uses: framework, CMS, CDN, web server and analytics. No sign-up, no extension.
Built by
Miguel Ángel Colorado Marin (MACM)
Built by
Miguel Ángel Colorado Marin (MACM)
Full-Stack Developer · Guadalajara, España
I develop web apps, digital tools and full projects — from design to deployment.
How to use the tech stack detector?
- 1
Enter the URL or domain
Type the website URL (e.g. example.com). The tool downloads the public HTML.
- 2
Click Analyze
Analyzes HTTP headers and HTML patterns to detect frameworks, CMS, CDNs, servers and analytics.
- 3
Review the Technology section
You'll see the detected stack: server (Nginx/Apache/Cloudflare), CDN, framework (Next.js/Nuxt/Gatsby/Remix), CMS and analytics.
- 4
Investigate
Use the results for competitive analysis, benchmarking or learning.
Technologies it detects
Frameworks
Next.js, Nuxt.js, Gatsby, Remix
CMS
WordPress, Shopify, Webflow, Wix, Squarespace, Ghost, Drupal
CDN
Cloudflare, Vercel, Netlify, AWS CloudFront, Fastly, GitHub Pages
Servers
Nginx, Apache, Cloudflare, LiteSpeed, OpenResty
Analytics
Google Tag Manager, Google Analytics 4, Hotjar, Amplitude, Intercom
Languages / Runtime
PHP (X-Powered-By)
Frequently asked questions
How does it detect technologies?
It analyzes HTTP headers (Server, X-Powered-By, Via, CF-Ray, X-Vercel-Id…) and HTML patterns: JS variables (__NEXT_DATA__, __NUXT__, ___gatsby), CMS meta tags (WordPress generator, Shopify), analytics scripts (GTM, GA4, Hotjar) and builder classes/attributes (Wix, Webflow, Squarespace).
Why doesn't it detect all technologies?
Detection is based on visible passive signals. Backends (database, server language) are not detectable. Well-optimized production frameworks may not leave traces. Coverage is for the most popular stacks.
What is knowing the tech stack useful for?
Competitive analysis, benchmarking, learning (what a site you admire uses) and technology decisions for new projects.
Is it different from Wappalyzer?
Wappalyzer has a huge fingerprint database. This tool is lighter, open source and requires no extension. For full coverage Wappalyzer is better; for speed without installing anything, this tool.
Is the data accurate?
It's indicative — technologies with visible signals in public HTML/headers. Some sites intentionally hide their stack. Take it as indication, not absolute certainty.
Is it legal to detect a website's tech stack?
Yes. This tool analyzes only public HTML (what any browser would see) and HTTP headers (visible in any browser's DevTools). This is exactly what Wappalyzer, BuiltWith, W3Techs and thousands of SEO tools do. We don't access any private system or perform any type of active scanning.
Embed this tool
Integrate the Tech Stack Detector in your blog or website:
<iframe src="https://miguelacm.es/embed/tech-stack-detector" width="100%" height="700" style="border:none;border-radius:12px;" loading="lazy"></iframe>
Source code available on GitHub.
View on GitHub