| Metric | Cornerstone | GSAP | Winner |
|---|---|---|---|
| Performance | 55 | 35 | Cornerstone |
| Accessibility | 90 | 89 | Cornerstone |
| Best Practices | 96 | 87 | Cornerstone |
| SEO | 85 | 91 | GSAP |
| Security | 63 | 66 | GSAP |
| TTFB | 334ms | 354ms | Cornerstone |
| Composite | 73 | 73 | Tie |
Cornerstone outperforms GSAP in 4 of 7 categories, with a stronger composite score (73 vs 73). GSAP leads in SEO, security.
Choose Cornerstone when your primary concern is performance and server response time. Its audit data shows consistent strength in these areas across the sampled sites.
Choose GSAP when your primary concern is SEO and security. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 1 audited Cornerstone sites and 248 audited GSAP 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 →
Small sample: one or both technologies have fewer than 10 audited sites. Treat these numbers as directional — medians stabilize around 20–30 audits per side.
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