DevOps
devops
performance
networking
What is CDN?
Definition
A CDN (Content Delivery Network) is a geographically distributed network of servers that delivers cached content from the nearest edge location to the user. This reduces latency, improves load times, and absorbs traffic spikes.
Why It Matters
CDNs serve static assets (CSS, JavaScript, images) from edge servers worldwide, reducing page load times by 50-80% for distant users. Popular CDNs include Cloudflare, AWS CloudFront, and Fastly. CDNs also provide DDoS protection and SSL termination.