Server-Timing response headers will pass through to the client
UpdateVerifiedAdded Sep 22, 2026
On August 10, 2026, Vercel's CDN will stop stripping the Server-Timing response header and begin passing it through to the client. Use Server-Timing to report backend metrics like database query time and cache hits. These values appear in the browser's network panel and as PerformanceServerTiming entries through the Performance API.
Topics: SQL, Observability, Developer tools, Performance
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