CDN

A CDN (Content Delivery Network) is a network of servers in many locations worldwide that hold copies (caches) of your website's content. When someone visits your site, images, scripts, and files are delivered from the geographically nearest server — noticeably cutting load time, especially for international visitors. A CDN also offloads your main server and often protects against DDoS attacks. Many hosts include a CDN or offer it as an option. More in the best web hosting comparison.