Protecting your embedded content with subresource integrity (SRI)
CDNs are good. You get to put your web things all over the world and then have them served to your global audience from a location close to them. For example, because this blog is served through CloudFlare [https://www.cloudflare.com/] and about two thirds of the requests to my site come direct from their cache, you're probably downloading all the images on this page from whichever point in the map below is closest to you: But what's even better than CDNs when it comes to cost and performance...