Network requests and timeline waterfall

Network requests and timeline waterfall

Quickly capture and analyze web page network requests during page load

Record information about each network operation on your page during the critical rendering path on page load

Tester and validators

5 Share

Enter the URI address

Include protocol type (http or https)

Measure the network performance of your site

Site Network waterfall records information about each network operation on your page, including detailed timing data, HTTP request and response, mime type and performance.

Submit your link and click analyze, we quickly load information for individual resources!

Network performance tool also display a resource summary and time metrics performace.

The result tables will display detailed information and data. You can search resource, sort each column and set the amount of entries to show.


The name of the resource


The HTTP status code


The type of the resource

Mime type

The MIME type of the requested resource


The size of the resource in byte and the transferred over network size


The total time occurred to receive the resource, from the start of the request to the receipt of the final byte


Site network waterfall tool provide information about resource diagnostic:

  • Render blocking resources: resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
  • Optimize cache policy: serve static assets with an efficient cache policy. A long cache lifetime can speed up repeat visits to your page
  • Optimize images: optimized images load faster and consume less mobile data
  • Use responsive image: serve images that are appropriately-sized to save mobile data and improve load time
  • Use webp image: serve images in next-gen formats like jpeg 2000, jpeg xr and webp which means faster downloads and less data consumption
  • Remove unused css rules: remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
  • Minify javascript: minifying JavaScript files can reduce payload sizes and script parse time


The Waterfall column displays a visual waterfall of all network requests. On mouse over reveals additional information.

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