Latest Performance Report for:

CDNs can give an equally fast web experience to your users across the globe.

A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows.

Consider marking your touch and wheel event listeners as passive to improve your page's scroll performance.

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay.

These DOM elements contribute most to the CLS of the page.

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.

Large network payloads cost users real money and are highly correlated with long load times.

Serve images that are appropriately-sized to save cellular data and improve load time.

A long cache lifetime can speed up repeat visits to your page.

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.

Keep the server response time for the main document short because all other requests depend on it.

Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers.

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.

Animations which are not composited can be janky and increase CLS.

This is the largest contentful element painted within the viewport.

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading.

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