Free Website SEO Analyzer & Core Web Vitals Auditor
Unlock deep performance insights with our professional-grade Lighthouse SEO checker. Whether you are optimizing a personal blog, e-commerce store, or business portfolio, this tool evaluates your web pages against Google’s official ranking metrics—including Performance, Accessibility, SEO Best Practices, and vital loading speeds like LCP and CLS.
SEO Health Checker Pro
Analyze performance, accessibility, SEO best practices, and Core Web Vitals instantly.
Running Lighthouse diagnostics...
Mastering Your Website Performance with a Free Lighthouse SEO Audit
In today's competitive digital landscape, website speed, accessibility, and search engine optimization (SEO) are critical pillars that dictate your ranking on Google search results pages. Slow load times, broken metadata, or poor mobile responsiveness can immediately drive potential visitors away and drop your organic visibility. Our advanced SEO Health Checker Pro empowers webmasters, bloggers, and digital marketers to conduct enterprise-grade audits using Google’s official PageSpeed Insights and Lighthouse infrastructure—completely free of charge.
By analyzing your web pages across mobile and desktop environments, this tool surfaces hidden performance bottlenecks, calculates vital Core Web Vitals, and provides actionable optimization insights so you can take corrective action immediately.
Core Metrics and Features Evaluated
🚀 Performance Score
Measures overall web speed and responsiveness. Evaluates script execution times, unused CSS/JS rules, and asset compression levels.
🎯 Core Web Vitals
Tracks critical UX metrics including First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS).
🔍 On-Page SEO & Best Practices
Checks for valid document titles, meta descriptions, mobile viewport configurations, secure HTTPS protocols, and accessibility compliance.
Frequently Asked Questions (FAQ)
What is a Lighthouse SEO Audit?
A Lighthouse audit uses Google's open-source automated tool to evaluate web page quality. It runs standard performance simulations to judge how fast, accessible, and search-friendly a website is for real users.
Why did my audit report show a DNS_FAILURE error?
This occurs when Google's remote crawler cannot resolve the domain name provided. Ensure your URL is typed correctly, has an active public DNS record, or is not pointing to private local environments like localhost.
Can I download or save my SEO audit report?
Yes! Once the audit results load completely, you can click the "📥 Download PDF Report" button at the bottom of the tool to export a clean, professional PDF breakdown for client presentations or offline tracking.
