W3cubDocs

/Web APIs

LargestContentfulPaint: url property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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.

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 Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
url 77 79 122 64 No 77 122 55 No 12.0 77 No

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/LargestContentfulPaint/url