Get in-depth insights, improve speed, boost SEO rankings, and deliver the best user experience — powered by real Google Lighthouse data.
Your website is performing exceptionally well
Illustrative preview — enter any URL on the left to run a real analysis powered by Google Lighthouse.
Running a real Lighthouse audit… this can take 10-30 seconds.
Unlock advanced features, historical data, and more.
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Click "Run Both" to scan mobile and desktop and compare results.
Without an API key, Google shares a very small anonymous quota across every visitor worldwide, so "API request failed (status 429)" errors are common. Adding your own free key raises your quota to 25,000 requests/day.
History, favorites, and preferences are stored only in your browser's local storage.
Real Lighthouse-powered analysis across performance, SEO, accessibility, and security — with AI-style guidance on what to fix first.
LCP, INP, CLS, FCP, TTFB and more, scored against Google's real thresholds.
Meta tags, structured data, crawlability, and heading structure checks.
Color contrast, ARIA labels, form accessibility, and keyboard navigation.
Track your scores over time with local scan history and trend charts.
Illustrative feedback — replace with your own real testimonials.
Recent posts from this Blogger site.
Common questions about how PerformanceX AI works.
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PerformanceX AI is a free website performance analyzer that runs a real Google Lighthouse audit against any public URL you enter, covering performance, SEO, accessibility, and best practices.
We built this to make performance auditing faster and more approachable, with historical tracking, favorites, and clearer prioritization than raw Lighthouse output alone.
Everything runs in your browser — there's no account, and your scan history stays on your device.
This site does not require an account. When you analyze a URL, that URL is sent to Google's public PageSpeed Insights API to run the audit; no other data about you is sent as part of that request.
Scan history, favorites, and your theme preference are stored only in your browser's local storage, on your own device, and are never transmitted to us.
This site may load third-party resources, such as web fonts, which can involve standard technical data (like IP address) being shared with that provider as part of a normal internet request. As this site is hosted on Blogger, Google's own privacy policy also applies to how Blogger serves and measures the page.
If you contact us through the form linked in the footer, we will use the information you provide only to respond to your message.
PerformanceX AI uses Google's public Lighthouse and PageSpeed Insights infrastructure to generate results. Scores and metrics can vary between runs due to network conditions and server load, and should be treated as estimates rather than guaranteed figures.
"AI" suggestion labels describe automated recommendations generated from the underlying audit data and thresholds, not a hosted conversational AI model.
This site is not affiliated with or endorsed by Google. Testimonials shown are illustrative placeholder content pending real customer feedback.
By using this site, you agree to use it for lawful purposes only, and only to analyze websites you own or have permission to test.
The site and its content are provided "as is," without warranties of any kind, express or implied, including the accuracy of third-party audit data. We may update or discontinue features at any time.
Continued use of the site after changes to these terms constitutes acceptance of the updated terms.
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