CDN

Meaning

CDN stands for Content Delivery Network: a group of servers in different places that store copies of site files so they reach visitors faster. A visitor is served from a nearby location instead of one distant origin server, which can improve loading time, one of the things Core Web Vitals describe. CDNs suit images, style sheets and scripts that rarely change. They are one speed tool among several, alongside compressed images, caching and reliable hosting near your audience. See also: CWV, Technical SEO, and the guide Technical SEO Basics: Speed, Mobile, Crawling and Security.