# Articles tagged with "caching"

Explore all content related to caching on xTom.

5/22/2026

**What Is a CDN and How Do They Work?**  
A content delivery network (CDN) is a globally distributed system of servers that delivers web content to users faster by serving it from a location close to them. This article explains what CDNs are, how they work under the hood, and when you actually need one.

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[#CDN](/content/tags/cdn/index.html)[#content delivery network](/content/tags/content-delivery-network/index.html)[#web performance](/content/tags/web-performance/index.html)[#caching](/content/tags/caching/index.html)[#edge servers](/content/tags/edge-servers/index.html)[#IaaS](/content/tags/iaas/index.html)[#networking](/content/tags/networking/index.html)[#latency](/content/tags/latency/index.html)