Largest contentful paint (LCP)

The largest-contentful-paint performance entry and the LargestContentfulPaint API measures the time it takes for the largest image or text to appear. Largest contentful paint (LCP) is a common metric for perceived loading times.

Baseline Status: Achieved Newly Available on Dec 12, 2025 across core engines.

Desktop Browser Engine Support

Google Chrome

77

Supported

Mozilla Firefox

122

Supported

Apple Safari

26.2

Supported

Microsoft Edge

79

Supported

Mobile Browser Engine Support

Chrome Android

77

Firefox Android

122

Safari iOS

26.2

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.LargestContentfulPaint ↗ api.LargestContentfulPaint.element ↗ api.LargestContentfulPaint.id ↗ api.LargestContentfulPaint.loadTime ↗ api.LargestContentfulPaint.renderTime ↗ api.LargestContentfulPaint.size ↗ api.LargestContentfulPaint.toJSON ↗ api.LargestContentfulPaint.url ↗