A Content Delivery Network (CDN) is a geographically distributed network of servers that cache and deliver a website’s content from a server location physically closer to each visitor, significantly reducing load times compared to serving every request from a single, distant server.
CDNs directly support Core Web Vitals performance, particularly metrics like Time to First Byte and Largest Contentful Paint, since visitors receive content faster when it’s served from a nearby server rather than one across the globe.
Beyond speed, CDNs also improve site reliability and resilience against traffic spikes or server issues, since the distributed network can absorb load that a single server might struggle to handle alone.
CDN implementation and optimization is part of our Technical SEO service.