Largest Contentful Paint Changelog

This is a list of changes to Largest Contentful Paint.

• Chrome 143
  • Metric bug fix: Fixed text presentation timestamps reporting too early, impacting LCP (introduced in M140)
• Chrome 140
  • Bug: Text presentation timestamps reporting too early, impacting LCP
• Chrome 133
  • Implementation optimizations: Expose coarsened cross-origin renderTime in element timing/LCP (regardless of TAO)
• Chrome 130
  • Launch feature: Exclude transparent text from being LCP eligible
• Chrome 126
  • Launch feature: Enable NewPresentationFeedbackTimeStamps on Mac to improve the accuracy of the frame display time
• Chrome 118
  • Implementation optimizations: Image loading prioritizations
• Chrome 117
  • Bug: Spurious LCP entries after user interaction
• Chrome 116
  • Metric definition improvement: Changes to how LCP handles videos and animated images
  • Implementation optimizations: Optimizing image load scheduling
• Chrome 112
  • Metric definition improvement: Largest Contentful Paint ignores low-entropy images
• Chrome 111
  • Implementation optimizations: Changes related to LCP, FCP and Paint Holding
• Chrome 99
  • Implementation optimizations: Navigation optimizations and timeOrigin changes
• Chrome 98
  • Metric bug fix: Text paints are more accurate
• Chrome 96
  • Metric bug fix: Largest Contentful Paint uses the page viewport
• Chrome 88
  • Metric definition improvement: Largest Contentful Paint ignores full viewport images
  • Metric definition improvement: Largest Contentful Paint stops recording after input in an iframe
  • Metric definition improvement: Largest Contentful Paint bug fix for some images with source changes
  • Metric definition improvement: Largest Contentful Paint ignores removed content by default
• Chrome 86
  • Metric definition improvement: Largest Contentful Paint ignores paints with opacity 0
• Chrome 83
  • Metric definition improvement: Largest Contentful Paint measurement stops at first input or scroll
  • Metric definition improvement: Largest Contentful Paint properly accounts for visual size of background images
• Chrome 81
  • Metric definition improvement: Largest Text Paint correctly reported while largest image is loading
• Chrome 79
  • Metric is elevated to stable; changes in metric definition will be reported in this log.
• Chrome 77
  • Experimental metric exposed via API: Largest Contentful Paint available via PerformanceObserver API