{"id":4909,"date":"2026-06-19T22:36:01","date_gmt":"2026-06-19T22:36:01","guid":{"rendered":"https:\/\/www.copahost.com\/blog\/?p=4909"},"modified":"2026-06-19T23:08:01","modified_gmt":"2026-06-19T23:08:01","slug":"what-is-a-cdn","status":"publish","type":"post","link":"https:\/\/www.copahost.com\/blog\/what-is-a-cdn\/","title":{"rendered":"What Is a CDN? How Content Delivery and Caching Work"},"content":{"rendered":"\n

A CDN (Content Delivery Network) is a group of servers spread around the world that store copies of your website’s content close to your visitors. Instead of every visitor loading your site from one distant server, a CDN serves it from the nearest location \u2014 making the site load faster, handling more traffic, and reducing the load on your main server. The way it stores those copies is called CDN caching, and it’s the core of how a CDN works.<\/strong><\/p>\n\n\n\n

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If your site has visitors from different regions \u2014 or you just want it to load faster \u2014 a CDN is one of the most effective tools available. This guide explains what a CDN is, how CDN caching actually works (edge servers, cache hits, TTL, and more), the difference between a CDN and plain caching, the benefits, and when you need one. For the bigger picture of how sites are served, see our guide on what web hosting is<\/a>.<\/p>\n\n\n\n

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