Verify CDN presence and edge performance status
System Definition BlockCheck if your website is correctly delivered via a Content Delivery Network. Analyze edge headers, compression (Brotli/Gzip), and cache HIT/MISS status for maximum performance.
WebToolkit Pro is engineered for zero-trust environments. This utility processes your sensitive data entirely within your browser using Web Workers.
When you submit a URL, our backend edge workers execute a standard HTTP GET request. The engine intercepts the raw response headers before they are parsed by a browser. It specifically scans for CDN identification signatures (like `cf-cache-status`), checks the `Content-Encoding` header for modern compression algorithms (like Brotli or Gzip), and evaluates your `Cache-Control` directives for maximum TTL (Time To Live) efficiency.
export function GET(request) {
return new Response('Asset Data', {
status: 200,
headers: {
// Cache on CDN for 1 day, stale-while-revalidate for seamless updates
'Cache-Control': 's-maxage=86400, stale-while-revalidate=3600'
}
})
}A 'HIT' means the CDN successfully found a saved copy of your file in its edge node's memory and served it directly to the user. This bypasses your origin server completely, resulting in lightning-fast load times and reduced bandwidth costs.
A 'MISS' occurs if the file was not in the cache, or if your origin server sent headers explicitly forbidding caching (like `Cache-Control: no-cache` or `private`). It can also happen if the file is rarely requested, causing the CDN to evict it from memory.
Yes. Brotli is a modern compression algorithm developed by Google that consistently outperforms Gzip, resulting in file sizes that are roughly 15% to 20% smaller. Smaller files mean faster downloads and higher Core Web Vitals scores.
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