# c15t Cookie Banner Performance Score

> AI-readable performance score for c15t, generated from CookieBench benchmark data.

- Canonical HTML: https://cookiebench.com/benchmarks/with-c15t-react/score
- Complete CMP markdown: https://cookiebench.com/benchmarks/with-c15t-react/llms.txt
- CookieBench AI index: https://cookiebench.com/llms.txt
- Vendor: https://c15t.com

## Score Summary

- Total score: 95/100 (Excellent)
- Performance: 95/100
- Bundle strategy: 100/100
- Network impact: 90/100
- Transparency: 100/100
- User experience: 70/100

## Category Evidence

- Performance: 95/100 (excellent, weight 40%)
- Bundle Strategy: 100/100 (excellent, weight 25%)
- Network Impact: 90/100 (excellent, weight 20%)
- Transparency: 100/100 (excellent, weight 10%)
- User Experience: 70/100 (fair, weight 5%)

## Core Web Vitals

- FCP: 30ms
- LCP: 30ms
- CLS: 0.000
- TTI: 1.1s
- TBT: 0ms

## Insights

- Outstanding performance metrics across all Core Web Vitals.
- Excellent bundle strategy - first-party bundling reduces network overhead and improves reliability.
- Open source solution provides transparency and community-driven development.
- Zero third-party dependencies minimize privacy concerns and improve reliability.

## Why c15t Scores Like This

c15t is shipped as a normal npm package and bundled into the host application, not loaded from a vendor CDN. That removes the third-party request, the extra TLS handshake, and the second main-thread JavaScript parse pass that legacy CMPs can incur. CookieBench rewards that architecture on Performance, Bundle Strategy, and Network Impact. The source is open on GitHub, so the implementation is auditable.