> ## Documentation Index > Fetch the complete documentation index at: https://bunny.net/docs/llms.txt > Use this file to discover all available pages before exploring further. # Website Still Slow > Tools and techniques to diagnose and fix performance issues after CDN setup. If your website is still slow after setting up Bunny CDN, use these tools to identify bottlenecks. ## Diagnostic tools ### Pingdom Website Speed Test [tools.pingdom.com](https://tools.pingdom.com) Quick and easy performance testing from multiple global locations. Provides a performance grade, optimization suggestions, and a detailed request waterfall. ### GTmetrix [gtmetrix.com](https://gtmetrix.com) Detailed PageSpeed and YSlow analysis with historic performance charts. Default tests run from Vancouver, Canada. Upgrade to GTmetrix PRO for additional test locations. ### WebPagetest [webpagetest.org](https://www.webpagetest.org) The most powerful free benchmarking tool. Features include: * Tests from locations worldwide (including Asia, South America, Africa) * Video recording of page load * Repeat view testing * Connection throttling * Detailed waterfall analysis ### Bunny Diagnostic Report [tools.bunny.net/diagnostic-report](https://tools.bunny.net/diagnostic-report) Bunny's built-in tool showing your connection metrics, PoP routing, and CDN configuration status. ## Common issues **Low cache hit rate:** Check your [cache configuration](https://bunny.net/docs/cdn/smart-cache.md) and ensure cacheable content has appropriate headers. **Origin slow to respond:** Consider enabling [Origin Shield](https://bunny.net/docs/cdn/performance/origin-shield.md) to reduce origin load, or check your origin server performance. **Large assets:** Enable [Bunny Optimizer](https://bunny.net/docs/optimizer.md) for automatic image optimization, or compress assets before uploading. **Too many requests:** Combine CSS/JS files, use sprites for icons, and implement lazy loading for images. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.