How to Improve Your Google PageSpeed Insights Score

Google PageSpeed Insights grades how fast your pages load and highlights what is holding them back. The score is useful, but the real prize is the advice underneath it — a prioritised list of fixes. Improve those, and both your score and your visitors' experience get better together.

First, read the report properly

Do not fixate on the number. Scroll to the Opportunities and Diagnostics sections — that is where the specific, fixable issues live. Tackle the biggest ones first. To measure over time, see testing your website's speed.

The highest-impact fixes

• Optimise images — usually the top opportunity. Compress and correctly size them, and use modern formats. See optimising images.
• Enable caching — serve ready-made pages. See LiteSpeed Cache and browser caching.
• Reduce and defer JavaScript/CSS — remove what is unused and load non-critical scripts later.
• Use a CDN — faster delivery worldwide. See what a CDN is.

Don't forget the server side

A slow "server response time" flag points at the hosting/app layer. OPcache, an up-to-date PHP version, and a tidy database all help the server respond faster.

Mobile matters most

Google judges your site primarily on its mobile performance, so check the mobile score specifically — see making your website mobile-friendly.

Frequently asked questions

Do I need a perfect 100 score?

No. Chasing a perfect score has diminishing returns. Aim for a good score and, more importantly, genuinely fast real-world load times. A "green" result is plenty for most sites.

My score varies each time I test.

Scores fluctuate with network and server conditions. Test a few times, focus on the consistent issues in the report, and track the trend rather than a single run.

The score is fine on desktop but poor on mobile.

Mobile is the priority for Google. Focus on image sizes, deferring scripts, and your Core Web Vitals, which are measured with mobile in mind.