Your cache isn't as warm as you think it is. The cache on mobile browsers is ~50MB, and 250MB on IE11. It's smaller on older IEs. Most regular internet users wi

Your cache isn't as warm as you think it is. The cache on mobile browsers is ~50MB, and 250MB on IE11. It's smaller on older IEs. Most regular internet users will download more than that every single day. You should always use a CDN, but that doesn't excuse large libraries. Shameless plug, but my startup, https://rasterize.io https://rasterize.io can tell you your cache hit rate for every visitor to your site.