Page Speed Test Checker – Free Website Speed Test | DigitalDay

Free website performance tool

Page Speed Test Checker

Test a public webpage on mobile or desktop with Google Lighthouse data. Review performance, accessibility, best practices, SEO checks, Core Web Vitals lab metrics, and the opportunities that may help you improve loading speed.

Test your website speed


Public pages only. The test is sent to Google PageSpeed Insights. Do not enter private URLs or pages requiring login. Results may take up to a minute.

Page speed report

Open Google PageSpeed

Key lab metrics

These are Lighthouse lab results from this run. They can vary between tests and do not guarantee how every real visitor experiences your site. Field data may be unavailable for low-traffic pages.

Opportunities and diagnostics

Recommendations are generated by Google Lighthouse. Review each suggested change before modifying your website.

How to use the Page Speed Checker

  1. Enter the full public URL, including https://, of the page you want to test.
  2. Select Mobile or Desktop. Mobile results are useful for checking a phone-sized experience; desktop results use a different device profile.
  3. Select Test page speed and wait for Google PageSpeed Insights to finish the analysis.
  4. Review the four category scores, loading metrics, and opportunities. Start with the biggest relevant bottlenecks, then test again after making changes.

Understanding your website speed results

  • Performance: a Lighthouse score based on loading and responsiveness-related lab audits. It is not a direct measurement of ranking position.
  • Accessibility: automated checks that identify some barriers, such as contrast and accessible names. Automated testing cannot find every accessibility issue.
  • Best Practices: checks for selected technical and browser best practices.
  • SEO: basic technical checks such as crawlability and metadata. A high score does not guarantee indexing or rankings.
  • Largest Contentful Paint (LCP): measures when the main visible content has rendered. A good real-user LCP target is 2.5 seconds or less.
  • Cumulative Layout Shift (CLS): measures unexpected visual movement. A good real-user CLS target is 0.1 or less.
  • Interaction to Next Paint (INP): measures real-user interaction responsiveness. Lighthouse may not provide a meaningful INP lab value for every run; this tool will show it only when returned.
  • Total Blocking Time (TBT): a lab metric that helps diagnose long tasks and is not the same as field INP.

How to improve page speed

  • Resize and compress large images; use modern formats where appropriate and set image dimensions.
  • Reduce unnecessary JavaScript and defer non-critical scripts where safe.
  • Remove unused CSS and reduce render-blocking resources.
  • Use caching and a CDN when suitable, and investigate slow server response time.
  • Reserve space for images, ads, embeds, and other dynamic content to reduce layout shifts.
  • Retest the exact URL on mobile and desktop after each meaningful change. Avoid installing multiple optimization plugins that perform the same task.

Related free tools

Continue your website checks with DigitalDay’s Meta Tags Analyzer, Redirect Checker, XML Sitemap Generator, and Website Analyzer.

Frequently asked questions

Is this Page Speed Checker free?

Yes. This page does not ask you to pay for a report. Requests are sent to Google PageSpeed Insights, and availability depends on Google’s current service limits.

Does a high score guarantee better Google rankings?

No. Page experience and Core Web Vitals are among many signals, and no single score guarantees rankings. Helpful content, crawlability, relevance, competition, and other factors also matter.

Why do mobile and desktop scores differ?

The device profiles simulate different conditions and can produce different results. Test both, and prioritize the experience that matters most to your visitors.

Why is field data unavailable?

Chrome user-experience field data is not available for every URL. A page with limited eligible traffic may show lab results only.

Can I test any website?

You can try public URLs that Google can access. Private pages, login-protected pages, blocked sites, or URLs that Google cannot fetch may fail.

How often should I run a speed test?

Run a test after important changes to images, scripts, styles, hosting, caching, or page layout. Use repeat runs to understand trends rather than relying on one score.

This tool provides automated technical checks for informational purposes. Always validate recommendations on your own site before deploying changes.