About SpeedCheck Pro
SpeedCheck Pro is a free, developer-friendly website performance testing tool powered by Google Lighthouse. We help developers, SEO professionals, and website owners understand and improve their site's performance.
Our Mission
To make professional website performance testing accessible to everyone, completely free, with no hidden costs or limitations. We believe faster websites create better user experiences and should be achievable for all.
What We Provide
- Core Web Vitals Analysis - Instant measurements of LCP, INP, CLS, FCP, and TTFB with color-coded scoring
- Lighthouse Performance Score - Overall performance rating from 0-100 with visual gauge
- Mobile & Desktop Testing - Test your site's performance on both mobile and desktop simulations
- Actionable Recommendations - Prioritized optimization opportunities with technical guidance
- Shareable Reports - Unique URLs for each test with social media preview cards
- Test History - Your recent tests are saved locally in your browser for easy comparison
Why Performance Matters
Website performance directly impacts user experience, search engine rankings, and conversion rates. Studies show that:
- 53% of mobile users abandon sites that take longer than 3 seconds to load
- A 1-second delay in page load time can reduce conversions by 7%
- Google uses Core Web Vitals as ranking factors for search results
- Faster websites provide better accessibility for users on slower connections
Powered by Google Lighthouse
SpeedCheck Pro uses Google Lighthouse, the industry-standard open-source tool for measuring web page quality. Lighthouse provides accurate, comprehensive performance metrics that are trusted by developers worldwide.
100% Free, Forever
SpeedCheck Pro is completely free with no premium tiers, paywalls, or usage limits. We believe professional performance testing should be accessible to everyone.