Website Tech Stack Finder

Detect the CMS, framework, libraries, CSS structure, and analytics trackers used on any website instantly.

🔍 Inspect Any Website's TechnologiesClient-Side Scan

Enter a website domain name (e.g., example.com or https://nextjs.org). The tool will fetch its HTML source code via a secure CORS proxy, extract meta headers, and run scanning rules to identify the CMS, frontend framework, CSS styles, JavaScript libraries, and tracking analytics in real time.

💡 How this technology finder works

  • Local Browser-Only Scanning: The entire inspection runs inside your web browser. We do not transmit or store scanned website URLs on our servers.
  • Double-Redundant CORS Bypassing: Browsers enforce Same-Origin Policies that block loading arbitrary site code. This tool tunnels the initial request through secure, fast public CORS proxies (AllOrigins and CORSProxy.io) to retrieve the raw HTML client-side.
  • Wappalyzer-Style Logic: Once the page is loaded, we parse the HTML tree and check it against patterns in script paths, link tags, CSS classes, meta tags, and DOM attributes to detect specific framework traces.

How the Website Tech Stack Finder Works

The Website Tech Stack Finder is a client-side diagnostic tool that reveals the technologies used to build any public website. Unlike other scrapers or bulk scanners that require you to create an account, purchase credits, or download intrusive browser extensions, this utility runs entirely in your browser with zero installation.

To run the analysis, the tool performs the following operations:

  1. Redundant CORS Proxy Fetching: Because web browsers restrict direct requests to external websites (the Same-Origin Policy), the utility tunnels the target website URL through open, secure public CORS gateways (such as AllOrigins or CORSProxy.io) to fetch the raw HTML markup.
  2. Virtual DOM Compilation: Once the HTML code is fetched, our script compiles a virtual DOM tree in your browser memory using the native DOMParser() API.
  3. Trace Matching & Fingerprints: The utility scans the parsed DOM tree against a rules database of script URLs, link elements, stylesheet paths, meta generators, and custom HTML attributes to identify matching framework traces.

Key Features

  • 🛡️ 100% Client-Side Scanning: Processes all fetches locally in your web browser. No search queries, URL inputs, or parsed site data are stored or tracked on our servers.
  • 📦 Wappalyzer-Style Category Detection: Groups detected technologies by category for clear readability, including CMS, Frontend Frameworks, CSS Styles, JS Libraries, Analytics, and Utilities.
  • 🏷️ Header & Meta Tag Parsing: Reads and displays the page title, meta description, and server-rendered HTTP status metrics.
  • 📋 Shareable Markdown Reports: Format and copy the complete technology stack breakdown as a clean Markdown list to share in developer channels or project files instantly.
  • ⚡ Double-Redundant Gateways: Implements an automatic fallback system. If the primary CORS proxy fails to retrieve a site, the tool seamlessly routes through the secondary gateway to ensure maximum availability.

Supported Technologies for Detection

Our rules engine is updated to detect a wide array of popular web technologies, including:

  • CMS / Site Builders: WordPress, Shopify, Webflow, Squarespace, Wix, Ghost, Drupal, Joomla, Blogger.
  • Frontend Frameworks: Next.js, Nuxt.js, Astro, Gatsby, Angular, React, Vue.js, Svelte.
  • CSS Styles & UI Libraries: Tailwind CSS, Bootstrap, Bulma, Font Awesome, Google Fonts.
  • JavaScript Libraries: jQuery, Alpine.js, HTMX, Lodash.
  • Analytics & Trackers: Google Analytics, Google Tag Manager, Facebook Pixel, Hotjar.
  • Utilities & Gateways: Stripe Checkout, PayPal SDK, Cloudflare, reCAPTCHA.

Frequently Asked Questions (FAQ)

Is my scanning history or URLs sent to DwellixTools servers?

No. All fetches, HTML DOM parsing, and technology detection rules are executed locally on your computer. The CORS proxies act only as transparent gateways to fetch the raw HTML code of the website; DwellixTools does not host or log your analysis.

Why does a scan fail for certain websites?

Certain web services and security platforms (like Cloudflare, Akamai, or custom firewalls) detect proxy scraper requests and block them using CAPTCHA challenges or IP rate limiting. If a website is protected by advanced bot-detection scripts, the CORS proxies will be unable to retrieve the source code, resulting in an analysis failure.

How accurate is the detection?

The utility works by analyzing the publicly visible HTML, script directories, and stylesheet paths. This method is highly accurate for frontend scripts, styling grids, tracking analytics, and site builders. However, because we run entirely in the browser, we cannot inspect server-side databases (like PostgreSQL, MySQL) or backend languages (like Python, PHP, Ruby) unless they expose specific HTTP headers.

Can I copy or export the results?

Yes. Click the Copy Report button at the top of the detected technologies grid. It copies a pre-formatted Markdown summary containing the target website details and tech stack categories, ready to paste directly into Slack, Discord, Notion, or text editors.