How do I check my website loading speed?

Website loading speed can affect how quickly visitors can access and use your pages. You can check your website’s performance using online testing tools and then investigate the issues they identify.

1. Use Google PageSpeed Insights

Open Google PageSpeed Insights and enter the URL of the webpage you want to test.
PageSpeed Insights provides separate results for mobile and desktop and reports performance-related metrics and recommendations.
Test important pages individually rather than assuming the homepage represents the entire website.

2. Check the Core Web Vitals

Pay attention to the Core Web Vitals, which measure important aspects of the user experience:

LCP (Largest Contentful Paint): how quickly the main content becomes visible.
INP (Interaction to Next Paint): how quickly the page responds to user interactions.
CLS (Cumulative Layout Shift): how much the page layout moves unexpectedly.

These metrics should be considered alongside the rest of the performance report.

3. Look at the recommendations

Review the problems identified by the testing tool. Common areas include:

Large or poorly optimised images
Render-blocking resources
Unused or excessive code
Slow server response
Caching
Third-party scripts

Do not assume that every recommendation needs to be implemented blindly. Check what is causing the issue and whether the proposed change is appropriate for your website

4. Test more than once

Performance results can vary because of network conditions, server load, device capabilities and other factors.
Run tests more than once and compare results rather than relying on a single score.

5. Test important pages

Check pages that visitors actually use, such as:

Homepage
Services or product
pages
Blog posts
Contact page
Landing pages

A website can have a fast homepage while individual pages remain slow..

Last Updated 2nd February 2026.

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