Tech stack detection. Detect the technologies behind a website from its home page HTML and response headers: CMS or site builder (WordPress, Shopify, Webflow…), JavaScript framework (Next.js, Nuxt, React…), analytics and ad pixels, support widgets, payments, captcha, CDN and hosting, web server and backend language, each with the evidence that matched. About 110 public fingerprints, server HTML only. Use for lead research, competitor analysis or sales prospecting.