# Faster CDN proxying to external origins

**Published:** May 23, 2025 | **Authors:** Casey Gowrie, Joe Haddad

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We’ve optimized connection pooling in our CDN to reduce latency when connecting to external backends, regardless of traffic volume.

- **Lower latency**: Improved connection reuse and TLS session resumption reduce response times by up to 60% in some regions, with a 15–30% average improvement.
- **Reduced origin load**: 97% connection reuse and more efficient TLS resumption significantly cut the number of new handshakes required.

This is now live across all Vercel deployments at no additional cost.

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📚 **More updates:** [View all changelog entries](/changelog/sitemap.md) | [Blog](/blog/sitemap.md)