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React vs Vercel Speed Insights

Based on 998 and 42 real audits

View React details | View Vercel Speed Insights details
MetricReactVercel Speed InsightsWinner
Performance3847Vercel Speed Insights
Accessibility8991Vercel Speed Insights
Best Practices8789Vercel Speed Insights
SEO9394Vercel Speed Insights
Security6668Vercel Speed Insights
TTFB315ms347msReact
Composite7375Vercel Speed Insights
Performance
React
38
Vercel Speed Insights
47
Accessibility
React
89
Vercel Speed Insights
91
Security
React
66
Vercel Speed Insights
68
SEO
React
93
Vercel Speed Insights
94
Composite
React
73
Vercel Speed Insights
75

Vercel Speed Insights outperforms React in 6 of 7 categories, with a stronger composite score (75 vs 73). React leads in TTFB.

When to choose React

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

When to choose Vercel Speed Insights

Choose Vercel Speed Insights when your primary concern is performance and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 998 audited React sites and 42 audited Vercel Speed Insights 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 →

FAQ

Which is faster, React or Vercel Speed Insights?
Based on real BeaverCheck audits, Vercel Speed Insights sites score higher on Lighthouse performance (47 vs 38 on average).
Which has better security, React or Vercel Speed Insights?
Vercel Speed Insights sites score higher on security analysis (68 vs 66 on average).
Which has better accessibility, React or Vercel Speed Insights?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Vercel Speed Insights (91 vs 89). 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, React or Vercel Speed Insights?
Vercel Speed Insights sites score higher on Lighthouse SEO signals (94 vs 93 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), React or Vercel Speed Insights?
React sites show lower Time to First Byte (315 ms vs 347 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 React or Vercel Speed Insights for my website?
Both platforms have trade-offs. Vercel Speed Insights scores higher on overall composite score while React 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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