Tech Intel Tool

Website Built
With Checker

Instantly discover the technology stack behind any website. Detect CMS, JS frameworks, analytics, CDN, and more.

CMS — WordPress, Shopify, Wix, Webflow…
Frameworks — Next.js, React, Vue, Angular…
Analytics — GA4, GTM, Hotjar…
Infrastructure — Cloudflare, Vercel, Nginx…
Payments — Stripe, Razorpay…
Live page analysisNo signup35+ signatures

Enter any website URL — e.g. stripe.com, swiggy.com

Technologies We Can Detect

35+ technology signatures across 9 categories

CMS
WordPressJoomlaDrupalGhostWixSquarespaceWebflow
E-commerce
ShopifyMagentoWooCommerce
JS Frameworks
Next.jsReactVue.jsAngularNode.js
Analytics
Google AnalyticsGoogle Tag ManagerHotjar
Infrastructure
CloudflareNginxApacheVercelNetlifyAWSHeroku
Payments
StripeRazorpay

Why Check What a Website Is Built With?

Competitive intelligence
Understand what technology your competitors use before deciding on your own stack. Are they on Shopify or custom? Next.js or WordPress?
Pitch the right service
Agencies and freelancers use this to identify prospects using outdated tech and pitch a modern migration.
Learn by example
Developers use it to identify which framework powers sites they admire — then learn from the stack.
Sales prospecting
Target companies using specific platforms (e.g. "all Magento stores in India") for product or migration pitches.
Security assessment
Identify outdated CMS versions or vulnerable plugins before performing a security audit.

How the Detection Works

The tool performs a live HTTP request to the target website (just like a browser would) and analyses the response in three layers:

HTML source analysis
Scans the page HTML for technology-specific patterns — script paths, meta tags, CSS class names, HTML attributes, and inline signatures.
HTTP response headers
Reads the Server, X-Powered-By, and other headers that reveal the server software, CDN, and hosting environment.
External resource URLs
Identifies CDN-hosted scripts and stylesheets (e.g. Google Analytics, Bootstrap CDN, Stripe.js) from their URL patterns.

Website Built With Checker — FAQs

How does the Website Built With Checker work?

The tool fetches the target website's HTML and HTTP headers, then analyses them against 35+ technology signatures — JavaScript patterns, meta tags, CSS class names, and server headers — to identify the tech stack.

Can it detect if a website uses WordPress?

Yes. WordPress leaves distinctive signatures in the HTML — wp-content paths, meta generator tags — that the tool reliably identifies.

Why can't it detect some technologies?

Some technologies are server-side only with no client-visible traces. Others are actively obscured. Heavily customised or obfuscated frameworks may also be missed.

Does it work on websites that require login?

The tool analyses only the publicly accessible homepage. Content behind login walls is not accessible.

What technologies can it detect?

35+ technologies including WordPress, Shopify, Wix, Next.js, React, Vue.js, Angular, Bootstrap, Tailwind CSS, Google Analytics, Cloudflare, Stripe, Razorpay, HubSpot, and major hosting platforms.

Is this the same as BuiltWith.com?

Similar concept, different implementation. BuiltWith.com has a vast historical database. Our tool does a live, real-time analysis — ideal for quick competitive intelligence without a subscription.

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Want to Build a Website Like the Ones You're Analysing?

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