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LargestContentfulPaint: url property

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The url read-only property of the LargestContentfulPaint interface returns the request URL of the element, if the element is an image.

Value

A string containing a URL.

Examples

Logging the url of the largest contentful paint

This example uses a PerformanceObserver notifying of new largest-contentful-paint performance entries as they are recorded in the browser's performance timeline. The buffered option is used to access entries from before the observer creation.

js

const observer = new PerformanceObserver((list) => {
  const entries = list.getEntries();
  const lastEntry = entries[entries.length - 1]; // Use the latest LCP candidate
  console.log(lastEntry.url);
});
observer.observe({ type: "largest-contentful-paint", buffered: true });

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
url 77 79 No No 64 No 77 77 No 55 No 12.0

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https://developer.mozilla.org/en-US/docs/Web/API/LargestContentfulPaint/url