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Improvement in Interaction Metrics
Metrics like First Paint and First Contentful Paint focus on the initial loading of pages but fail to account for the importance of the content displayed first on the screen. This can lead to loading moments where users still do not find the page useful because they cannot see what they are looking for.
Largest Contentful Paint (LCP), on the other hand, measures the loading performance of a page’s main content block. According to web.dev, LCP is “user-centered and reflects the perceived loading speed of a site. A fast LCP reassures users about the relevance of the page, marking the moment its main content is fully loaded.”
In other words, LCP indicates how quickly the largest and most relevant element (such as a text block or an image) on the page is displayed to the user. This is crucial because people judge loading time based on when they see content they find useful.
In order to evaluate the Core Web Vitals Metrics, Google considers an LCP good if it is under 2.5 seconds, needs improvement if between 2.5 and 4 seconds, and poor if it exceeds 4 seconds.
The Impact of LCP on SEO
How to Measure Largest Contentful Paint (LCP)
