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Pagespeed Insights Alternative

Lookup, a free Pagespeed Insights alternative

The CRFT Lookup is the free alternative to Pagespeed Insights for Lighthouse benchmarks, with added technology detection, meta tag previews and sitemap visualization for a complete view of a website's technical profile.

Screenshot of CRFT Lookup report on TailwindCSS
Technology Checker
Performance Scores
Meta Preview
SEO Analysis
Accessibility Check
Sitemap Visualization
Technology Checker
Performance Scores
Meta Preview
SEO Analysis
Accessibility Check
Sitemap Visualization
Technology Checker
Performance Scores
Meta Preview
SEO Analysis
Accessibility Check
Sitemap Visualization
Technology Checker
Performance Scores
Meta Preview
SEO Analysis
Accessibility Check
Sitemap Visualization
Technology Checker
Performance Scores
Meta Preview
SEO Analysis
Accessibility Check
Sitemap Visualization

Performance benchmarks with Lighthouse

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
Performance and loading speed
Accessibility standards
SEO score
Best practices compliance
TailwindCSS Lighthouse Report

Preview meta tags across platforms

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
Search engine previews
Social media card displays
Messaging app previews
Live preview editor
Title
76 / 60 characters
Description
114 / 155 characters
Image
Open Graph Image of https://tailwindcss.com

Interactive sitemap visualization

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
Hierarchical tree view
Interactive navigation
Collapsible sections
Page count insights
CRFT Studio sitemap example

How we stack up

See how CRFT Lookup compares to Pagespeed Insights in features and capabilities. Both tools detect technologies, but we go beyond with performance analysis and meta tag previews.

PageSpeed Insights logo
Lookup
Technology Detection
Lighthouse Analysis
Meta Tag Previews
Sitemap Visualization
Free, Unlimited Usage

Get the complete technical profile of any website

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
tailwindcss.com
Tailwind CSS - Rapidly build modern websites without ever leaving your HTML
Performance
75
Accessibility
86
Best Practices
96
SEO
91
React
NextJS
basecamp.com
Basecamp: Project management software, online collaboration
Performance
93
Accessibility
100
Best Practices
100
SEO
100
Cloudflare
github.com
GitHub · Build and ship software on a single, collaborative platform · GitHub
Performance
64
Accessibility
100
Best Practices
100
SEO
92
React
AWS
stripe.com
Stripe | Financial Infrastructure to Grow Your Revenue
Performance
72
Accessibility
93
Best Practices
74
SEO
100
React
Contentful
posthog.com
PostHog - How developers build successful products
Performance
59
Accessibility
69
Best Practices
74
SEO
83
Gatsby
Cloudflare

Your questions, answered

What makes CRFT Lookup different from Pagespeed Insights?

While both tools analyze website performance, CRFT Lookup goes beyond by detecting technologies used to build the site, showing detailed meta tag previews, and providing comprehensive Lighthouse scoring - all in one place. Pagespeed Insights focuses mainly on performance metrics, while we give you the complete technical picture.

Which tool provides more detailed performance data?

Both CRFT Lookup and Pagespeed Insights use Lighthouse for performance analysis. However, CRFT Lookup contextualizes these metrics alongside the detected technologies, helping you understand how your tech stack impacts performance. We also retain historical data to track improvements over time.

Can I get the same technology detection with Pagespeed Insights?

No, Pagespeed Insights doesn't include technology detection. CRFT Lookup analyzes your site's code, headers, and scripts to identify over 2,500 different technologies - from frameworks and CMS platforms to analytics tools and infrastructure. This helps you understand exactly how sites are built.

Which tool is better for SEO analysis?

While Pagespeed Insights includes basic SEO metrics, CRFT Lookup provides additional context through our meta tag preview feature. You can see exactly how your site appears across search engines, social media, and messaging platforms - helping you optimize your site's presence everywhere it matters.

Do I need to use both tools?

CRFT Lookup includes all the core functionality of Pagespeed Insights plus additional features like technology detection and meta tag previews. While you can use both, CRFT Lookup provides a more comprehensive analysis in a single tool. And like Pagespeed Insights, it's completely free to use.

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