Longest Contentful Paint
LCP is the Largest Contentful Paint, aka the point when the largest visible piece of content shows up on the page. Google defines good LCP as "showing up within 2.5s."
For sites with lots of different types of content pages, determining the cause of poor LCP scores can be an exercise in Frustration. In this app, the Web-Vitals.js reporting library has been used to instrument high-cardinality Honeycomb events, so that you can quickly find pages with poor LCP scores and see what elements or images are the source of the problem.