How CDNs Make Websites Faster
How serving files from nearby servers makes a site fast everywhere
What you'll learn
- Why distance makes pages slow
- Edge servers, cache hits and cache misses
- Controlling caching with the Cache-Control header
- How a CDN takes load off your server
In this video, we'll look at why the same website can load fast in New York but slow in Sydney, and how Content Delivery Networks (CDNs) fix it by serving content from servers closer to users. We'll cover edge servers, cache hits, cache misses, Cache-Control headers, and how CDNs reduce the load on your own server.
We'll also look at what CDNs are best for, like images, videos, CSS, and JavaScript, and how they can cache API responses and block attacks.
