| Metric | Calendly | RSS | Winner |
|---|---|---|---|
| Performance | 61 | 50 | Calendly |
| Accessibility | 91 | 88 | Calendly |
| Best Practices | 96 | 89 | Calendly |
| SEO | 96 | 92 | Calendly |
| Security | 76 | 68 | Calendly |
| TTFB | 348ms | 462ms | Calendly |
| Composite | 81 | 76 | Calendly |
Calendly outperforms RSS in 7 of 7 categories, with a stronger composite score (81 vs 76). RSS leads in no categories.
Choose Calendly when your primary concern is server response time and performance. Its audit data shows consistent strength in these areas across the sampled sites.
RSS doesn't clearly lead Calendly in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.
Scores are medians across 20 audited Calendly sites and 1062 audited RSS 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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