CDN

A Content Delivery Network is a distributed network of servers placed around the globe to deliver web content more efficiently. CDNs cache and serve static assets like images, CSS, and JS files from locations closer to the end-user, reducing latency and improving load times. For image optimization, many CDNs offer on-the-fly resizing, format conversion, and compression. This allows developers to store a single high-quality source image and let the CDN handle delivery of optimized versions.