How I Built a Chrome Extension That Reveals Any Website's Tech Stack in One Click

Ever land on a website and wonder — what's powering this thing? Is that Next.js or Nuxt? Are they running Cloudflare or AWS? What analytics are they using? I found myself doing this constantly. Inspecting source code, checking HTTP headers, reading meta tags. Every time I visited a competitor's site, a client's project, or just something that loaded fast and looked good, I wanted to know the stack behind it. So I built a Chrome extension that answers all of those questions with a single click. Here's exactly how I did it, and how you can build one too. Why I Needed This As a developer, knowing what technologies a website uses is genuinely useful: Competitive analysis — see what frameworks your competitors chose and why Learning — discover new tools by seeing them in production on real sites Sales qualification — if you sell Shopify services, you need to know who runs Shopify Security audits — identify outdated CMS versions or vulnerable libraries Curiosity — sometimes you just want to