Website Speed Test

This tool uses the Google PageSpeed Insights API to run a real Lighthouse analysis on any publicly accessible URL. The results reflect actual page load performance as measured by Google's infrastructure.

Key Metrics Explained

• Time to First Byte (TTFB): The time from when the browser sends a request to when it receives the first byte of the response. A fast TTFB indicates responsive server infrastructure.
• First Contentful Paint (FCP): The time when the browser renders the first piece of DOM content (text, image, or canvas). This is when users first see something on screen.
• Largest Contentful Paint (LCP): The time when the largest visible content element finishes rendering. Google considers LCP under 2.5 seconds as good.
• DOM Content Loaded: Fired when the HTML document has been completely parsed and all deferred scripts have been executed.
• Full Page Load: The total time for all resources (images, stylesheets, scripts, fonts) to finish loading.

Resource Types

• Document: The HTML document itself
• Stylesheet: CSS stylesheets that define the visual presentation
• Script: JavaScript files that add interactivity and dynamic behavior
• Image: Visual content including photos, icons, and graphics
• Font: Custom web fonts loaded for typography
• Other: APIs, tracking pixels, media files, and miscellaneous resources

Performance Scoring

The performance score (0-100) is calculated by Lighthouse based on Core Web Vitals and other metrics. A score of 90+ is considered good, 50-89 needs improvement, and below 50 is poor. Analysis runs on Google's servers using a desktop strategy, and results may take 10-30 seconds.

You can embed this util on your own site as a widget. Adding ?embed=1 to the URL loads a compact version with just the tool itself; no header, menu, or documentation. Paste this snippet into your HTML:

Copy snippet Adjust the height to taste.