Enter a website and instantly see every technology it uses — CMS, frameworks, analytics, marketing tools, hosting, and more. Built for sales teams doing competitive research and technical qualification.
Enter a domain or URL to detect its technology stack
Knowing what technologies a company uses is one of the most powerful signals in B2B sales. Our free tech checker tool scans any website and reveals its complete technology stack in seconds.
Whether you're qualifying leads based on their tech stack, researching competitors, or identifying companies using specific tools, this gives you instant intelligence without expensive subscriptions to BuiltWith or Wappalyzer.
Tech stack data is gold for sales teams. If you sell a Shopify app, you need to know who runs Shopify. If you're pitching a GA4 migration service, you need to find companies still on Universal Analytics. If you compete with HubSpot, you need to know which prospects already use it.
We analyze HTTP headers, HTML source code, script references, meta tags, and cookie patterns to identify 150+ technologies across 16 categories. From CMS and frameworks to analytics, CDNs, marketing tools, and payment processors — we surface it all in a clean, categorized view.
Sales teams using tech stack data see 35% higher conversion rates because they can personalize outreach based on what the prospect actually uses. "I noticed you're running Next.js on Vercel" hits different than a generic cold email.
Type any domain or paste a URL. We'll scan the site and analyze its headers, scripts, and source code.
Get a categorized breakdown of every technology detected — CMS, frameworks, analytics, CDN, hosting, marketing tools, and more.
Qualify leads by tech stack, research competitors, find prospects using specific tools, or personalize your outreach.
Learn how to create AI-powered sales tools, automate prospecting, and build systems that generate pipeline on autopilot.
Everything you need to know about the tech checker
We analyze multiple signals: HTTP response headers, HTML source code patterns, JavaScript file references, meta tags, link tags, and cookie patterns. Each technology has unique fingerprints we match against.
We detect 150+ technologies across 16 categories including CMS platforms, frameworks, analytics tools, marketing software, CDNs, hosting providers, payment systems, and more.
Yes, completely free. You get 1 free search, then enter your email to unlock 3 more. No credit card required.
Very accurate for technologies that leave visible fingerprints (headers, scripts, meta tags). Some technologies are harder to detect if they're heavily customized or server-side only.
CMS, Frameworks, JavaScript Libraries, CSS Frameworks, Analytics, Marketing Tools, Advertising, A/B Testing, CDN, Web Servers, Hosting, E-commerce, Payment, Security, Fonts, and more.
Absolutely! Tech stack data is incredibly valuable for sales. Know what tools your prospects use to personalize outreach, qualify leads, and identify companies using competitor products.
We provide similar core functionality completely free. Enterprise tools offer historical data and bulk lookups but cost hundreds per month. This gives you instant results at no cost.
Some websites use server-side rendering, custom frameworks, or security measures that minimize visible technology fingerprints. Single-page apps loaded via JavaScript may also show fewer detectable signals.
No. All analysis happens in real-time and we don't store the domains you search. Your research stays private.
You can check any publicly accessible website. Sites behind authentication, firewalls, or that block automated requests may not work.
Yes! Enter a competitor's website to see their entire tech stack. Great for understanding their infrastructure, marketing tools, and technology choices.
Companies change their tech stack over time. For active prospects, re-checking quarterly gives you fresh data for personalized outreach.
Learn how to create AI-powered GTM systems and automate your sales workflow.