How Should a Business Prioritize Fixes Suggested by PageSpeed Insights Based on Potential SEO Gains?


To prioritize fixes suggested by PageSpeed Insights for potential SEO gains, focus on addressing issues that affect Core Web Vitals metrics: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). Improving these metrics enhances user experience and can lead to better SEO performance. Here's a detailed guide to tackling these optimizations in order of impact on SEO.

Understanding Core Web Vitals

Largest Contentful Paint (LCP)

LCP measures how quickly the largest content element becomes visible. A fast LCP contributes to a positive user experience. Aim for an LCP of 2.5 seconds or less.

First Input Delay (FID)

FID gauges the time from when a user first interacts with your site to when the browser can respond. A good FID is less than 100 milliseconds.

Cumulative Layout Shift (CLS)

CLS quantifies visual stability by measuring unexpected layout shifts. A good CLS score is less than 0.1.

Prioritizing Fixes for SEO Gains

Server Response Time

Improving server response time helps with faster initial page load and contributes to LCP.

Efficient Asset Delivery

Optimizing how assets are delivered can significantly improve LCP.

Minimize Render-Blocking Resources

Reducing render-blocking resources can lead to better LCP and FID metrics.

Optimize Web Fonts

Optimizing web fonts can reduce LCP and prevent layout shifts.

Example Fixes Based on Insights

Here's a practical example to illustrate how to prioritize fixes:

  • If your PageSpeed Insights reports a poor LCP, start by improving server response time and deploying a CDN.
  • If FID is an issue, focus on reducing the impact of third-party code and removing unnecessary JavaScript.
  • If CLS is high, ensure that dimensions are set for all media and ads to prevent unexpected shifts.


By prioritizing fixes that impact Core Web Vitals, businesses can improve user experience and achieve better SEO performance. Integrating these optimizations in the described order will effectively enhance your site's speed and stability.