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by aranjedeath
4240 days ago
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The cache-sharing other users are citing is useful, but ultimately not the most-useful part. The most useful feature is the fact that, given tons of sites are now serving global audiences, you as the site owner/administrator no longer have to deal with provisioning servers to datacenters or infrastructure of any sort (for these static resources) nearer to your customers. If you optimize by putting all of these external links into <head> and shipping that bit of your page out earlier than it takes to generate the rest of the page, you'll see pretty solid performance gains for anyone not where YOU are (near your likely us/eu based servers). At some point in optimization the speed of light becomes the hard barrier, and not caching concerns. |
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