Vercel Sandbox initialization up to 4x faster with regional caching

·2026.11.13 09:00

Key point

Regional caching of image data reduces startup latency for sandboxes outside the Washington, D.C. region, with measured improvements up to 75% in Paris.

Details

Vercel Sandbox initialization is now up to 4x faster outside the Washington, D.C. (iad1) region by serving reused image data from a regional cache.
Internal end-to-end benchmarks with Vercel Managed Images show startup time fell about 75% in Paris and from 3.5s to 1.05s in Seoul.
The feature supports managed and custom images backed by Vercel Container Registry, including snapshots based on those images.
Regions closer to origin storage generally see smaller improvements because requests already travel a shorter distance.

performance vercel sandbox container-registry regional-caching

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