What is a CDN?
A CDN is a network of servers that caches website resources globally to expedite delivery from locations closest to visitors.
Core Benefits of CDNs:
Faster File Delivery
Storing static resources on local edge servers reduces latency for quicker loading.
Scalability and Reliability
Distributing traffic prevents origin server overload and enhances availability during surges.
CDN capabilities like DDoS protection, WAF rules, and SSL/TLS fortify websites.
How CDNs Work
· Assets are cached on edge servers near end users.
· Requests are served from optimal nearby edge location.
· Traffic is load balanced across CDN efficiently in real-time.
Types of Content Delivered
Static files, streaming media, APIs, dynamic content like HTML.
Major providers include Cloudflare, Akamai, Amazon CloudFront, and Fastly.
By caching globally and optimizing routing, CDNs significantly accelerate website performance.