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Category: JavaScript libraries

YUI

Based on 31 real audits

39
Avg. Performance
91
Avg. Accessibility
92
Avg. Best Practices
93
Avg. SEO
70
Avg. Security
75
Avg. Composite
39 /100
Avg. Performance
314 ms
Avg. TTFB
75 /100
Avg. Composite
31
Sites Audited

How YUI sites compare

YUI sites tend to score below average on performance (39/100), compared to the global average of 65/100.

Recent Audits

View adoption trends → See all 27 websites using YUI →
SitePerformanceGradeAudited
brettpinegar.com38C2026-10-03
www.lindaschlapfer.com30C2026-10-02
www.lindaschlapfer.com36C2026-10-02
www.westchestercouplescounseling.com30C2026-10-02
www.westchestercouplescounseling.com35C2026-10-02
www.westchestercouplescounseling.com30C2026-10-02
www.westchestercouplescounseling.com40C2026-09-28
www.hoskingdesign.com.au37C2026-06-26
www.7starshhc.com32C2026-05-29
printxpressgp.com49C2026-05-10

Commonly Used With

Sites that use YUI also commonly use:

core-js JavaScript libraries 25Open Graph Miscellaneous 25HSTS Security 24Squarespace CMS 19Modernizr JavaScript libraries 19Squarespace Commerce Ecommerce 19Priority Hints Performance 19Google Tag Manager Tag managers 19Stimulus JavaScript frameworks 18Google Analytics Analytics 16

Compare with...

YUI vs core-jsYUI vs Open GraphYUI vs HSTSYUI vs SquarespaceYUI vs ModernizrYUI vs Squarespace CommerceYUI vs Priority HintsYUI vs Google Tag ManagerYUI vs StimulusYUI vs Google Analytics

FAQ

What is the average Lighthouse performance score for YUI sites?
Based on 31 real audits, YUI sites score an average of 39/100 on Lighthouse performance.
How does YUI compare on web security?
YUI sites score an average security grade of 70/100 in BeaverCheck audits.
What is the average page load time for YUI websites?
The average Time to First Byte (TTFB) for YUI sites is 314ms based on 31 audits.
How can I improve my YUI site's performance?
Run a free audit on BeaverCheck to get specific recommendations for your YUI site. Common issues include render-blocking resources, unoptimized images, and missing caching headers.

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