Based on 1687 and 173 real audits
| Metric | core-js | ServiceNow | Winner |
|---|---|---|---|
| Performance | 36 | 33 | core-js |
| Accessibility | 88 | 88 | Tie |
| Best Practices | 84 | 84 | Tie |
| SEO | 91 | 89 | core-js |
| Security | 66 | 66 | Tie |
| TTFB | 396ms | 336ms | ServiceNow |
| Composite | 73 | 72 | core-js |
core-js outperforms ServiceNow in 3 of 7 categories, with a stronger composite score (73 vs 72). ServiceNow leads in TTFB.
Choose core-js when your primary concern is performance and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Choose ServiceNow when your primary concern is server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1687 audited core-js sites and 173 audited ServiceNow 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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