Analyze any website's performance, accessibility, SEO, and best practices to understand how well its built, with a step-by-step breakdown of how to improve it.
Scan a website
CRFT Lookup analyzes any website’s performance, accessibility, SEO, and best practices using Google’s Lighthouse. Just enter a URL, wait for our comprehensive analysis, and get actionable insights to improve your website’s scores.
Scan a website
" This did a great job at giving me insight into how some of my favorite sites are created, and has inspired me to build. "
See how CRFT Lookup compares to other tools in features and capabilities. Some also provide Lighthouse scores, but we go beyond with technology detection, meta tag previews and sitemap visualization too.
Check out our suite of advanced features designed to give you deeper website insights. Analyze performance with Lighthouse reports, preview meta tags across platforms, and explore site structure with our interactive sitemap visualization.
Identify frameworks, CMS platforms, analytics tools, and more with our powerful technology detection engine. Get detailed insights about the tools and services powering any website.
See how websites appear when shared on search engines, social media, and messaging apps. Test and preview meta tags to ensure optimal presentation across all platforms.
Explore website structure through an interactive tree visualization. Get a clear understanding of page hierarchy, navigation paths, and content organization through an intuitive visual interface.
CRFT Lookup uses Google's Lighthouse tool to analyze website performance, accessibility, SEO, and best practices. When you input a URL, we run a comprehensive audit that evaluates loading speed, mobile-friendliness, code quality, meta tags, and many other factors to generate detailed scores and recommendations.
Our Lighthouse analysis is highly reliable as it uses Google's official testing infrastructure. We run the tests in a controlled environment with consistent network conditions to ensure reproducible results. While scores can vary slightly between runs due to external factors, the insights and recommendations remain consistent and actionable.
CRFT Lookup evaluates four key areas: Performance (loading speed, responsiveness), Accessibility (WCAG compliance, screen reader compatibility), SEO (meta tags, mobile optimization), and Best Practices (HTTPS, image formats). Each category receives a score from 0-100 based on numerous technical measurements.
Yes, we perform live scans using Lighthouse for each URL submitted. This ensures you get current, accurate results reflecting the latest version of the site and its performance characteristics. The entire analysis typically completes in under 30 seconds.
Our detailed reports provide specific recommendations for each category. Common improvements include optimizing images, enabling text compression, fixing accessibility issues, adding meta descriptions, and implementing security best practices. Each suggestion includes step-by-step instructions for implementation.
