Page speed
Largest Contentful Paint
LCP under 2.5 s; critical over 4.0 s
What we check
LCP under 2.5 s; critical over 4.0 s
Why it matters
LCP is when the main content actually appears - visitors judge speed by it.
How to fix it
Optimise the hero image or the first block of content and its server response.
How it affects your score
This check sits in Page speed, which is worth 20% of the overall score. A critical result costs the full weight of the check; a warning costs half. If we can't measure it on your page, we leave it out of the score entirely.