UX Lens vs PageSpeed Insights
UX Lens delivers AI-powered usability audits. PageSpeed Insights analyzes page speed and Core Web Vitals. They solve different problems — here's how they compare.
TL;DR
PageSpeed Insights tells you if your site loads fast. UX Lens tells you if your site is easy to use. A fast site with poor UX still loses users.
UX Lens is best for
Usability audits, heuristic evaluation, design reviews, pre-launch UX checks
PageSpeed Insights is best for
Page load speed analysis, Core Web Vitals monitoring, performance optimization
Feature-by-Feature Comparison
A detailed look at what each tool offers.
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Pricing Comparison
PageSpeed Insights is free but only measures speed — not usability.
UX Lens
All features included in every plan
PageSpeed Insights
Completely free, no account needed
PageSpeed is free but only measures speed — not usability.
Where UX Lens Shines
UX Lens is purpose-built for fast, structured usability evaluation.
Usability Focus
Purpose-built for evaluating usability and user experience — not just technical performance metrics.
Framework-Based
Every audit is structured around Nielsen's 10 Usability Heuristics — the gold standard in UX evaluation.
Structured UX Scoring
Receive clear scores for each heuristic, making it easy to prioritize fixes and track UX improvements over time.
Expert-Level Output
AI trained on thousands of UX best practices delivers insights that match senior UX consultants.
Design Evaluation
Evaluates visual hierarchy, layout, consistency, and design patterns — things speed tools can't measure.
Works on Pre-launch Pages
Audit any page — even pre-launch designs and prototypes. No live URL or traffic required.
Where PageSpeed Insights Shines
PageSpeed Insights excels at measuring and optimizing page load performance.
Real User Data (CrUX)
Provides real-world performance data from the Chrome User Experience Report, showing how actual users experience your site.
Core Web Vitals Tracking
Measures LCP, FID, and CLS — the metrics Google uses for search ranking signals and page experience.
Free & Instant
Completely free to use with no account required. Enter any URL and get performance results in seconds.
Frequently Asked Questions
Can I use UX Lens and PageSpeed Insights together?
Yes, and you should. They measure completely different things. Use PageSpeed Insights to ensure your site loads fast and passes Core Web Vitals. Use UX Lens to ensure your site is easy to use and follows usability best practices. A fast site with confusing navigation still loses users.
Does PageSpeed Insights check usability?
No. PageSpeed Insights focuses exclusively on page load performance, Core Web Vitals, and technical optimization opportunities. It does not evaluate usability, user experience, navigation, visual hierarchy, or design quality.
Why should I pay for UX Lens when PageSpeed Insights is free?
Because they solve different problems. PageSpeed Insights tells you if your page loads fast. UX Lens tells you if your page is easy to use. A site can score 100 on PageSpeed and still have terrible UX — confusing layouts, poor navigation, inconsistent design. UX Lens catches the issues that speed tools miss.
Which should I use first — UX Lens or PageSpeed Insights?
Use both. Run PageSpeed Insights to check your technical performance and Core Web Vitals. Run UX Lens to audit your usability and get actionable design recommendations. Together, they give you a complete picture of both performance and user experience.
Does UX Lens check page speed?
No. UX Lens focuses on usability and user experience evaluation based on Nielsen's 10 Heuristics. For page speed and Core Web Vitals analysis, use Google PageSpeed Insights or Lighthouse.
Ready to see what AI-powered UX audits look like?
Try UX Lens free — no credit card, no traffic required. Get your first audit results in under 5 minutes.
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