如何将CDN加速技术应用到图标上？
使用 CDN 缓存 javascript、css、字体等已成为常见做法... 然而，这似乎并没有扩展到相同程度的图标（可能是因为每个站点都喜欢拥有独特的外观和感觉？）
是否存在由 CDN 托管的广泛使用的图标集，这些图标集足够常见，可以显着提高 CDN 托管的速度并且可能已经使用该 CDN 从另一个站点进行了预缓存。
一个例子是： http://cdnjs.cloudflare.com 其内容可在 https://github.com/cdnjs/cdnjs/tree/master
它托管的一些图标集位于
/ajax/libs/twitter-bootstrap/2.3.2/img/glyphicons-halflings.png
/ajax/libs/fatcow-icons/...
/ajax/libs/foundicons/3.0.0/svgs/...
/ajax/libs/aui/5.4.0/aui/css/icons/...
/ajax/libs/topcoat-icons/0.2.0/svg/...
/ajax/libs/jqueryui/1.10.3/css/base/images/...
*jqueryui is also hosted on ajax.googleapis.com and others but is a limited set
：引导半身人图标集：
http://netdna.bootstrapcdn.com/bootswatch/2.3.2/img/glyphicons-halflings.png
http://ajax.aspnetcdn.com/ajax/bootstrap/2.3.2/img/glyphicons-halflings.png
http://www.bootstrapcdn.com/twitter-bootstrap/2.3.1/img/glyphicons-halflings.png
It has become common practice to use CDNs for caching javascript, css, font's and more...
however this does not appear to extend to icons to the same extent (possibly because each site prefers to have a unique look and feel?)
Are there widely used icon sets hosted by CDNs that are common enough to provide significant speed improvement from the CDN hosting and possibly already being pre-cached from another site using that CDN.
One example is:
http://cdnjs.cloudflare.com whose contents are browse-able at https://github.com/cdnjs/cdnjs/tree/master
some icon sets it hosts are at:
/ajax/libs/twitter-bootstrap/2.3.2/img/glyphicons-halflings.png
/ajax/libs/fatcow-icons/...
/ajax/libs/foundicons/3.0.0/svgs/...
/ajax/libs/aui/5.4.0/aui/css/icons/...
/ajax/libs/topcoat-icons/0.2.0/svg/...
/ajax/libs/jqueryui/1.10.3/css/base/images/...
*jqueryui is also hosted on ajax.googleapis.com and others but is a limited set
as is the bootstrap halflings icon set:
http://netdna.bootstrapcdn.com/bootswatch/2.3.2/img/glyphicons-halflings.png
http://ajax.aspnetcdn.com/ajax/bootstrap/2.3.2/img/glyphicons-halflings.png
http://www.bootstrapcdn.com/twitter-bootstrap/2.3.1/img/glyphicons-halflings.png
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IconFinder 托管一个 CDN，其中包含 Fugue、Silk、Silk2、FatCow (Farm-Fresh) 和其他图标套。
这是来自 IconFinder 的创建者和开发者的确认。 MD 可以热链接到他们的 CDN。
IconFinder hosts a CDN which has Fugue, Silk, Silk2, FatCow (Farm-Fresh) and other icon sets.
And here's confirmation from IconFinder's creator & MD that it's okay to hotlink to their CDN.
http://www.dustball.com/icons
“Fam3 图标搜索和免费 CDN 托管，作者：Brian克卢格”
http://www.dustball.com/icons
"Fam3 Icon Search and free CDN hosting for everyone by Brian Klug"
您自己在 Amazon CloudFront 上托管它们怎么样？根据您的流量，每月只需花费几美分。
首先，请确保您已通过将正在使用的图标转换为单个精灵文件来优化它们。这可能会根本解决使用 CDN 的需要。
How about hosting them yourself on Amazon CloudFront? It should only cost pennies a month depending on your traffic.
Though first of all, make sure you've optimised the icons you're using by turning them into a single sprite file. That may resolve the need to use a CDN at all.