How to Build a Competitive Analysis Tool in JavaScript (Free APIs)

Want to know what tech stack your competitors use, where their servers are located, and what their site looks like — all from a single script? Let's build it. We'll combine four free APIs to create a competitive intelligence tool that runs from the command line: Web Scraper — extract meta tags, headings, and links Screenshots — capture visual snapshots DNS Lookup — find hosting provider and infrastructure IP Geolocation — locate their servers Get a Free API Key All four APIs use the same key. Grab one (200 free credits, no credit card): curl -X POST "https://api.frostbyte.world/api/keys/create" Save the key from the response. The Full Script Create competitor-analysis.js : const API_KEY = process . env . FROSTBYTE_KEY ; const BASE = ' https://api.frostbyte.world ' ; async function analyzeCompetitor ( url ) { const domain = new URL ( url ). hostname ; console . log ( `\n🔍 Analyzing ${ domain } ...\n` ); // Run all API calls in parallel const [ scrape , screenshot , dns , geo ] = await P