Manual code analysis is inefficient. For a deeper scan, we fetch data directly from a live URL. By utilizing the Fetch API and an AllOrigins Proxy, we bypass CORS restrictions to extract comprehensive metadata, scripts, and structure. 🚀
Bypassing CORS with a Proxy 🛡️
To inspect foreign domains, we route requests through a proxy server. This avoids "Cross-Origin Resource Sharing" blocks that browsers enforce by default.
const proxy = "https://api.allorigins.win/get?url=";
const response = await fetch(proxy + encodeURIComponent(targetUrl));
const data = await response.json();
// Raw HTML is stored in data.contents
Deep Inspection Logic 🔍
We parse the raw string into a DOM document. This enables us to count script tags, check for icons, and verify language attributes across the entire page structure.
const doc = new DOMParser().parseFromString(data.contents, 'text/html');
const scripts = doc.querySelectorAll('script').length;
const lang = doc.documentElement.lang;
Conclusion 🚀
True web performance starts with visibility. Automated auditing allows for rapid competitive analysis and deployment verification. ✨
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