Performance & Core Web Vitals audit powered by Google Lighthouse data.
This free SEO audit tool analyzes your website's performance and technical SEO using Google Lighthouse lab data. Get Core Web Vitals insights (LCP, INP, CLS), find render-blocking resources, unoptimized images, and server response delays—then follow prioritized fixes to improve speed and rankings.
Free SEO Audit & Performance Analysis
Our free SEO audit tool provides a comprehensive performance and technical SEO analysis. It helps you identify critical issues that impact your website's speed, user experience, and search engine visibility.
This audit analyzes Core Web Vitals (LCP, INP, CLS), loading performance, JavaScript and CSS inefficiencies, image optimization opportunities, and server response delays. You'll receive clear insights into what's slowing down your website and how those issues affect both users and search rankings.
All results are presented in a structured, easy-to-understand format, with prioritized fixes and practical recommendations you can act on immediately to improve performance and SEO scores.
What You'll Get From This SEO Audit
- Performance scores for Mobile and Desktop
- Core Web Vitals analysis (LCP, INP, CLS)
- Speed and loading bottlenecks
- JavaScript and CSS optimization issues
- Image and asset optimization opportunities
- Server and network delay insights
- Prioritized fixes with clear recommendations
How This SEO Audit Works
- Enter your website URL or domain
- Click "Check" to start the audit
- Review detailed results and actionable recommendations
Powered by Google Lighthouse lab data
Enter your website URL to instantly analyze performance and SEO issues.
Runs in ~10–20 seconds. No signup required.
SEO Audit FAQ
What does this SEO audit check?
It checks Google Lighthouse metrics including Performance, Core Web Vitals (LCP, INP, CLS), JavaScript & CSS issues, image and asset optimization opportunities, and server/network delays.
Is this SEO audit free to use?
Yes. The SEO audit is free and you can run checks without creating an account.
How long does the audit take?
Most audits finish in about 10–20 seconds, depending on your website and network conditions.
Do you test both mobile and desktop?
Yes. You can run audits for both Mobile and Desktop to compare performance and Core Web Vitals behavior.
Why are my Core Web Vitals different from Google Search Console?
This tool uses Lighthouse lab data from a single test run. Search Console reports field data from real users over time, so results can differ.
What should I fix first after an audit?
Start with the biggest impact items: improve LCP by optimizing hero images and reducing render-blocking resources, reduce INP by minimizing heavy JavaScript, and reduce CLS by setting image/video dimensions.
Explore more: SEO Checker and other Tools.