#CDN

Articles about CDN — exploring patterns, best practices, and real-world implementations in production systems.

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Pratik Dhanave · ·8 min read

Web and CDN Caching

Every time a web page loads instantly on a repeat visit, or a video streams smoothly from halfway around the world, caching is the reason. The web is layered with caches — in your browser, at CDN edge servers near you, in front of origin servers — all applying the same caching principle to make the internet fast. And remarkably, much of it is coordinated by a few HTTP headers that let servers tell caches exactly what to store and for how long. Understanding web and CDN caching is understanding how the internet stays fast at global scale.

Every time a web page loads instantly on a repeat visit, or a video streams smoothly from across the world, caching is the reason. The web is layered with caches — browser, CDN edge, origin — all applying the same principle, much of it coordinated by a few HTTP headers.

#Caching#Web#Performance#CDN#Backend Engineering

All posts on this site are written by Pratik Dhanave, an Agentic AI Architect with 7+ years building production distributed systems, multi-agent AI platforms, and cloud-native infrastructure. About the author → Each article includes working code, architecture diagrams, and references to the specific frameworks and standards discussed. Browse all posts or explore related topics using the tag cloud above.