| Metric | React | Youzan | Winner |
|---|---|---|---|
| Performance | 41 | 41 | Tie |
| Accessibility | 89 | 66 | React |
| Best Practices | 88 | 69 | React |
| SEO | 93 | 75 | React |
| Security | 69 | 64 | React |
| TTFB | 369ms | 1007ms | React |
| Composite | 75 | 68 | React |
React outperforms Youzan in 6 of 7 categories, with a stronger composite score (75 vs 68). Youzan leads in no categories.
Choose React when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Youzan doesn't clearly lead React in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Scores are medians across 1172 audited React sites and 1 audited Youzan 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.
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