The CRFT Lookup is the free alternative to GTmetrix for website performance benchmarks, with added technology detection, meta tag previews and sitemap visualization for a website's complete technical profile.
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.
Scan a website
Go beyond tech detection with integrated Google Lighthouse scoring. Analyze performance, accessibility, SEO, and best practices to understand how well a website is built using its detected technologies.
Scan a 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.
Scan a website
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.
Scan a website
See how CRFT Lookup compares to GTmetrix in features and capabilities. Both tools detect technologies, but we go beyond with performance analysis and meta tag previews.
Discover what technologies power any website, visualize their sitemap structure, analyze their performance with Lighthouse scores, and preview how they appear across social platforms with meta tag previews - all in one free tool.
Scan a website
CRFT Lookup offers similar technology detection capabilities to GTmetrix, while also providing additional features like Google Lighthouse performance metrics and meta tag previews. As an alternative solution, our platform maintains comprehensive analysis capabilities and makes them freely accessible.
Yes, the CRFT Lookup is completely free to use. You can perform unlimited scans and access all features including technology detection, performance analysis, and meta tag previews without any cost to you. So how do we make money? We sell web design and development services.
Fairly accurate. When you input a URL, we spin up a headless instance of Chromium, visit the website and analyze its HTML, JavaScript variables, response headers and more. Then, we compare them against our database of over 2,500 technology fingerprints to identify frameworks, CMS platforms, analytics tools, and infrastructure technologies. Our detection engine is regularly updated to stay current with new versions and emerging technologies. While no detection system is perfect due to obfuscation and custom implementations, we maintain high accuracy by using multiple detection methods and continuous updates to our pattern matching algorithms.
Yes, all reports generated by the CRFT Lookup are automatically saved and shareable via a unique URL. Reports are retained for 30 days and include all analysis data: detected technologies, Lighthouse performance scores, and meta tag previews. This makes it easy to share reports with a friend, teammate, or client.
While GTmetrix focuses mainly on performance metrics, CRFT Lookup offers an alternative approach with integrated Google Lighthouse scoring for analyzing performance, accessibility, SEO, and best practices. We also include comprehensive meta tag previews to show how your site appears across search engines, social media, and messaging platforms, providing a well-rounded view of your website's technical profile.
