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Building a CDN Cache Invalidation Strategy That Scales

Guide to building scalable CDN cache invalidation strategies using Cache-Control headers, Cache Tags (Surrogate Keys), and Stale-While-Revalidate.

Sachin Sharma
Sachin SharmaCreator
Aug 6, 2026
2 min read
Building a CDN Cache Invalidation Strategy That Scales
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Guide to building scalable CDN cache invalidation strategies using Cache-Control headers, Cache Tags (Surrogate Keys), and Stale-While-Revalidate.

CDNCachingPerformanceCloudflareArchitecture
Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.

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