A CDN enhances user experience for global audiences by reducing latency and improving load times through edge servers near users. It supports global reach and mobile performance with compression and adaptive streaming, boosts reliability with load balancing and DDoS protection, and lowers bandwidth costs by caching data. CDNs also enable scalability for high-traffic events like product launches and live streams. As technology advances, CDNs will facilitate faster, more secure, and personalized digital experiences using AI and edge computing. Essential for e-commerce, media, and corporate sites, CDNs are critical for competitiveness in the digital age.