CDN (Content delivery network or content distribution network) is a large distributed system of proxy servers deployed in multiple data centers via the Internet.
The goal of a CDN is to serve content to end-users with high availability and high performance. CDNs serve a large fraction of the Internet content today, including web objects (text, graphics and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social networks.
With CDNJS, store owners can save time for uploading as well as storage space on Shopify shop. And the speed from CDNJS is faster than CDN from Shopify.