Website Tech Stack Checker
Enter any domain to instantly discover its technology stack, CMS platform, analytics tools, hosting, and more.
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How Does the Tech Stack Checker Work?
Our tech stack checker analyzes a website's HTTP headers, DNS records, and publicly available metadata to identify the technologies it uses. We detect CMS platforms (WordPress, Shopify, Webflow), analytics tools (Google Analytics, Hotjar, Mixpanel), JavaScript frameworks (React, Vue, Angular), hosting providers, CDNs, and 100+ SaaS services.
Why Check a Website's Tech Stack?
- Sales teams — Identify prospects using competitor products or complementary tools
- Marketers — Understand competitor technology choices and marketing infrastructure
- Developers — Research technology trends, adoption rates, and architecture patterns
- Investors — Evaluate a company's technical maturity and infrastructure spend
What Technologies Can We Detect?
Our scanner identifies technologies across multiple categories: content management systems, e-commerce platforms, JavaScript frameworks, CSS frameworks, analytics and tracking tools, advertising networks, CDN providers, web servers, email service providers, marketing automation, A/B testing tools, customer support widgets, payment processors, and cloud infrastructure services.
Frequently Asked Questions
How does the tech stack checker work?▾
We analyze HTTP response headers, DNS records (CNAME, MX, TXT), and publicly visible metadata to identify technologies. No invasive scanning is performed; all data comes from standard web requests.
Is this tool really free?▾
Yes. You get 3 free lookups per day with no sign-up. A paid verified record adds the official register entry and 12 months of change monitoring.
What technologies can you detect?▾
We detect CMS platforms (WordPress, Shopify, Webflow), analytics (Google Analytics, Hotjar, Mixpanel), frameworks (React, Vue, Angular), CDNs, hosting providers, email services, and 100+ SaaS tools.
How accurate are the results?▾
Results are based on publicly observable signals and are generally very accurate for major technologies. Some tools that don't expose headers or DNS records may not be detected.
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