Glossary · Measurement and evidence
LCP
Largest Contentful Paint, the time until the largest visible element has rendered, one of the Core Web Vitals. Under 2.5 seconds is the threshold.
What LCP means
Largest Contentful Paint, the time until the largest visible element has rendered, one of the Core Web Vitals. Under 2.5 seconds is the threshold. It is dominated by the hero image or heading and by whatever blocks it; a lazy-loaded hero image is the most common self-inflicted cause.
Terms this definition uses
Related terms in Measurement and evidence
The vocabulary for saying how strongly something is known.
evidence level · false positive · denominator note · percentile rank · population baseline · cohort asymmetry · self-audit invariant · unscored measurement · dated series · change receipt · regression · finding age · graded through a wall · self-audit · placeholder in record · fetcher disagreement · own-host loop · score version · row review · double-counted defect · cosmetic row · gated row · log file analysis · AI referral attribution · finding fingerprint · finding state · headroom · fix list · render gap · lab data · Lighthouse · RUM · CLS · INP · topicality · intent coverage · canary · citation rate · presence rate · answer stability
Questions about LCP
What is LCP?
Largest Contentful Paint, the time until the largest visible element has rendered, one of the Core Web Vitals. Under 2.5 seconds is the threshold.
Which area of the glossary does LCP belong to?
Measurement and evidence: The vocabulary for saying how strongly something is known.
See it in the full glossary · 668 terms across 19 areas.