Based on 1747 and 57 real audits
| Metric | core-js | Pinterest Conversion Tag | Winner |
|---|---|---|---|
| Performance | 37 | 28 | core-js |
| Accessibility | 88 | 89 | Pinterest Conversion Tag |
| Best Practices | 85 | 77 | core-js |
| SEO | 91 | 91 | Tie |
| Security | 66 | 65 | core-js |
| TTFB | 424ms | 306ms | Pinterest Conversion Tag |
| Composite | 73 | 71 | core-js |
core-js outperforms Pinterest Conversion Tag in 4 of 7 categories, with a stronger composite score (73 vs 71). Pinterest Conversion Tag leads in accessibility, TTFB.
Choose core-js when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Pinterest Conversion Tag when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1747 audited core-js sites and 57 audited Pinterest Conversion Tag 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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