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LCP by Search Engine

LCP by Search Engine without noise

Vasil Dachev avatar
Written by Vasil Dachev
Updated this week

What is LCP by Search Engine

LCP by Search Engine shows how traffic coming from different search engines impacts the Largest Contentful Paint (LCP) on your pages.

This lens helps you identify which search engines - such as Google, Bing, DuckDuckGo, or others - are sending visitors whose experience may be slowed down by factors related to their referrer or the way your site handles their traffic.

Only search engines that were active and measurable during the selected period are listed. LCP is the most popular vital from the Core Web Vitals and represents the loading time of the largest element on the page.


Healthy LCP by Search Engine sample


Should you worry

In a healthy setup, traffic from various search engines should have little to no negative effect on LCP. You may see search engines listed, but they won’t cause yellow or red warnings. This means your site handles incoming search engine traffic efficiently, without delays in loading the largest content.

A healthy configuration often includes:

  • Optimized landing pages tailored for search traffic.

  • Minimal or fast redirects from search engines.

  • Effective caching and prefetching for common search engine visitor patterns.

If LCP remains green across all search engine referrers, your site is well-optimized for organic search visitors.

Unhealthy LCP by Search Engine sample

When LCP is impacted by a search engine, it typically means that visitors from that referrer experience slower load times due to:

  • Redirect chains triggered by the search engine or tracking parameters.

  • Slow server response times when handling search engine traffic.

  • Additional scripts or personalization features that activate specifically for these visitors.

  • Network latency or throttling affecting pages served to search engine visitors.

Common cases include heavy analytics or tracking scripts firing only on search engine traffic, or landing pages not optimized for specific search engine user agents.

If you notice consistent yellow or red LCP values associated with a particular search engine, it signals the need to investigate how your site handles that traffic and optimize accordingly.

Resolving unhealthy LCP by Search Engine

Go-to action plan to resolve an unhealthy LCP by Search Engine:

  1. Ask Uxi to analyze your LCP by Search Engine values and suggest improvements.

  2. Use Filters to focus on pages and referrers where search engine traffic causes slow LCP.

  3. Simulate LCP of the suspected lens to see if fixing it will resolve the slow LCP by Search Engine. If yes, this is where the resolution focus should be.

  4. Use an automated LCP optimization tool like Navigation AI to improve your LCP by Search Engine values.

  5. Once you’ve improved LCP, set an alert to be the first to know if it starts worsening again.

Try it yourself

Discover how your website performs with real user data.

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