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Performance Analyzer

Analyze website performance metrics using browser Performance API. You can analyze the current page or navigate to another URL (with CORS limitations).

URL to Analyze (optional)

⚠️ CORS Limitations: Due to browser security restrictions, you can only analyze pages from the same origin or pages that explicitly allow cross-origin access. For external URLs, you may need to use browser extensions or proxy services. The "Analyze Current Page" button below works for any page you're currently viewing.

Click to analyze the performance of the page you're currently viewing

Navigation Timing

DNS Lookup

TCP Connect

DOM Content Loaded

Page Load

Core Web Vitals

LCP (Largest Contentful Paint)

FID (First Input Delay)

CLS (Cumulative Layout Shift)

Resource Timing

Resource	Duration	Size	Type