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AlloyUI vs YUI Doc

Based on 7 and 9 real audits

View AlloyUI details | View YUI Doc details
MetricAlloyUIYUI DocWinner
Performance4549YUI Doc
Accessibility9291AlloyUI
Best Practices9190AlloyUI
SEO9290AlloyUI
Security6466YUI Doc
TTFB334ms391msAlloyUI
Composite7374YUI Doc
Performance
AlloyUI
45
YUI Doc
49
Accessibility
AlloyUI
92
YUI Doc
91
Security
AlloyUI
64
YUI Doc
66
SEO
AlloyUI
92
YUI Doc
90
Composite
AlloyUI
73
YUI Doc
74

AlloyUI outperforms YUI Doc in 4 of 7 categories, with a stronger composite score (73 vs 74). YUI Doc leads in performance, security, composite score.

When to choose AlloyUI

Choose AlloyUI when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose YUI Doc

Choose YUI Doc when your primary concern is performance and security. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 7 audited AlloyUI sites and 9 audited YUI Doc sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →

Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.

FAQ

Which is faster, AlloyUI or YUI Doc?
Based on real BeaverCheck audits, YUI Doc sites score higher on Lighthouse performance (49 vs 45 on average).
Which has better security, AlloyUI or YUI Doc?
YUI Doc sites score higher on security analysis (66 vs 64 on average).
Which has better accessibility, AlloyUI or YUI Doc?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor AlloyUI (92 vs 91). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, AlloyUI or YUI Doc?
AlloyUI sites score higher on Lighthouse SEO signals (92 vs 90 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), AlloyUI or YUI Doc?
AlloyUI sites show lower Time to First Byte (334 ms vs 391 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose AlloyUI or YUI Doc for my website?
Both platforms have trade-offs. YUI Doc scores higher on overall composite score while AlloyUI may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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