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React vs Vercel Speed Insights

Based on 1357 and 49 real audits

View React details | View Vercel Speed Insights details
MetricReactVercel Speed InsightsWinner
Performance4442React
Accessibility9090Tie
Best Practices8989Tie
SEO9393Tie
Security7170React
TTFB454ms337msVercel Speed Insights
Composite7675React
Performance
React
44
Vercel Speed Insights
42
Accessibility
React
90
Vercel Speed Insights
90
Security
React
71
Vercel Speed Insights
70
SEO
React
93
Vercel Speed Insights
93
Composite
React
76
Vercel Speed Insights
75

React outperforms Vercel Speed Insights in 3 of 7 categories, with a stronger composite score (76 vs 75). Vercel Speed Insights leads in TTFB.

When to choose React

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

How this comparison was built

Scores are medians across 1357 audited React sites and 49 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, React sites score higher on Lighthouse performance (44 vs 42 on average).
Which has better security, React or Vercel Speed Insights?
React sites score higher on security analysis (71 vs 70 on average).
Which has better accessibility, React or Vercel Speed Insights?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor React (90 vs 90). 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?
React sites score higher on Lighthouse SEO signals (93 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?
Vercel Speed Insights sites show lower Time to First Byte (337 ms vs 454 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. React 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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