Tech Detector

Detect technologies used by any website — CMS, frameworks, JavaScript libraries, CDN, hosting, analytics, and 40+ other technologies.

Run a check to see results

APIPOST /api/v1/web/tech
5(14 votes)
27
checks performed
Try also: HTTP Headers
Run Check

Key Features

100% Free

No registration required, unlimited checks

Instant Results

Real-time analysis with detailed output

REST API Access

Integrate into your workflow via API

Accurate Data

Live queries to authoritative sources

What is Tech Detector?

The technology detector reveals the complete tech stack behind any website by analyzing HTTP response headers, HTML source code, JavaScript signatures, CSS patterns, and meta tags. It identifies technologies across 40+ categories including CMS platforms (WordPress, Shopify, Wix, Drupal), JavaScript frameworks (React, Vue, Angular, Next.js), CDN providers (Cloudflare, AWS CloudFront, Fastly), analytics tools (Google Analytics, Hotjar, Plausible), hosting providers, web servers (Nginx, Apache, LiteSpeed), font services, payment processors, marketing automation tools, and more. This free website technology checker is a powerful alternative to tools like BuiltWith and Wappalyzer.

It's used by competitive analysts researching how competitors build their websites, sales teams identifying prospects using specific platforms they sell to, developers evaluating technology choices by seeing what successful sites use, security researchers identifying potentially vulnerable software versions, and marketers understanding which tools and integrations a website relies on.

How to Use

  1. 1Enter the website URL you want to analyze (e.g., https://example.com)
  2. 2Click 'Run Check' to scan the page for technology signatures
  3. 3Review detected technologies organized by category: CMS, frameworks, CDN, analytics, hosting, and more
  4. 4Click on any detected technology to learn more about it
  5. 5Use the results for competitive research, tech evaluation, or sales prospecting

Who Uses This

System Administrators

Monitor and troubleshoot infrastructure

Developers

Debug network issues and integrate via API

SEO Specialists

Verify domain configuration and performance

Security Analysts

Audit and assess network security

Frequently Asked Questions

How do I find out what technology a website uses?
Enter the website URL in the Tech Detector and click Run Check. The tool fetches the page and analyzes multiple signals: HTTP headers reveal the web server (Nginx, Apache), CDN (Cloudflare, AWS), and programming language. HTML source code contains meta tags, generator tags, and class naming patterns that identify CMS platforms. JavaScript files have unique signatures for frameworks like React, Vue, or jQuery. CSS patterns indicate UI frameworks like Bootstrap or Tailwind. The combined analysis produces a comprehensive technology profile across 40+ categories.
What technologies can this tool detect?
The detector covers 40+ categories including: CMS platforms (WordPress, Shopify, Wix, Squarespace, Drupal, Joomla), JavaScript frameworks (React, Vue, Angular, Svelte, Next.js, Nuxt), CSS frameworks (Tailwind, Bootstrap, Material UI), web servers (Nginx, Apache, LiteSpeed, IIS), CDN providers (Cloudflare, AWS CloudFront, Fastly, Akamai), analytics (Google Analytics, Hotjar, Mixpanel, Plausible), hosting providers, programming languages, font services (Google Fonts, Adobe Fonts), tag managers, A/B testing tools, payment processors, live chat widgets, and email marketing integrations.
Why would I want to know what tech stack a website uses?
Common use cases include: competitive analysis (understand what technology drives successful competitors), technology evaluation (see real-world adoption of frameworks you're considering), sales intelligence (find prospects using platforms you integrate with or migrate from), security research (identify outdated software versions with known vulnerabilities), market research (track technology adoption trends in your industry), and hiring (understand the tech stack of companies you're applying to). The insights help make informed decisions about your own technology choices.
How accurate is website technology detection?
Detection accuracy varies by technology type. Server-side technologies revealed in HTTP headers (web server, CDN, programming language) are very accurate. CMS platforms with distinctive HTML patterns (WordPress, Shopify) are reliably detected. JavaScript frameworks that leave identifiable runtime signatures (React, Vue) are usually detected correctly. However, heavily customized sites may obscure their technology stack, and some technologies are designed to be invisible (security through obscurity). The tool reports what it can confidently identify based on observable signals.
Is this tool similar to BuiltWith or Wappalyzer?
Yes — this technology detector serves a similar purpose to BuiltWith and Wappalyzer, providing website technology profiling. Like those tools, it analyzes HTTP headers, HTML, and JavaScript to identify the tech stack. The key difference is that this tool is completely free with no usage limits, requires no browser extension or account, and works directly in your browser. It's ideal for quick lookups when you want to check what a specific website is built with.

Related Articles

Master Subdomain Verification: Real-World TechniquesGuide

Master Subdomain Verification: Real-World Techniques

Master subdomain verification with real-world techniques and tools. Learn to improve security and SEO with effective strategies.

NetVizor Team
Mar 21, 2026
Unlock the Best SEO Tools Every Webmaster NeedsNews

Unlock the Best SEO Tools Every Webmaster Needs

Wondering which SEO tools are truly valuable? Discover the top picks that can transform your site's visibility and performance effortlessly.

NetVizor Team
Mar 9, 2026
Your Internet Speed Isn't What You Think It Is. Let's Verify!Guide

Your Internet Speed Isn't What You Think It Is. Let's Verify!

Think you know your internet speed? Think again! Discover how to test it accurately and find out what you really need with our expert guide.

NetVizor Team
Mar 2, 2026

Related Tools

HTTP Headers

SSL Checker

Security Score

Website Speed Test

Popular Tools

DNS Lookup

WHOIS Lookup

Domain Age

Nameserver Checker

API Endpoint

POST /api/v1/web/tech
View Documentation