Signed URLs are now available for Vercel Blob

Vercel Blob now supports signed URLs, enabling developers to generate time-limited, secure links to access stored blobs without exposing the blob's public URL or requiring authentication headers. This feature allows for controlled access to private or sensitive blob content while maintaining security through URL expiration and optional additional constraints. Signed URLs simplify sharing blob resources securely and are useful for scenarios like temporary file downloads, private content distribution, and protecting sensitive assets.

Source: Vercel Blog | 2026-06-02