A Content Delivery Network (CDN) significantly improves website load times by distributing content across multiple servers located in various geographic regions. When a user requests a webpage, the CDN serves content from the nearest server, reducing latency and network congestion. This decreases the load on the origin server and ensures faster content delivery. CDNs also enhance website performance during high traffic periods and can provide security benefits like DDoS protection, further contributing to an optimized user experience across both desktop and mobile platforms.