Analysis
Tech Stack Checker
What is that site built with? We fetch the page and detect frameworks, CMS, analytics, hosting, and payment tools from live signatures.
What it detects
The checker looks for the fingerprints technologies leave in a page's HTML and response headers: Next.js's /_next/ assets, WordPress's wp-content paths, Shopify's CDN, Tailwind's utility classes, analytics snippets from Google, Plausible, PostHog and Segment, and hosting signatures from Cloudflare, Vercel, and Netlify. Detection is signature-based, so heavily customized or server-rendered-only stacks may show fewer results than a browser extension would.