| Metric | JSS | Webpack | Winner |
|---|---|---|---|
| Performance | 41 | 43 | Webpack |
| Accessibility | 90 | 90 | Tie |
| Best Practices | 84 | 88 | Webpack |
| SEO | 89 | 93 | Webpack |
| Security | 69 | 69 | Tie |
| TTFB | 293ms | 357ms | JSS |
| Composite | 74 | 75 | Webpack |
Webpack outperforms JSS in 4 of 7 categories, with a stronger composite score (75 vs 74). JSS leads in TTFB.
Choose JSS when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Webpack when your primary concern is best practices and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 15 audited JSS sites and 1138 audited Webpack 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 →
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