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* Because of both reduced latency and caching, CDN hosting will improve performance for most users
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* We can easily collect statistics about pages and sites using the hosted version of MathJax
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We switched to Rackspace as our CDN provider in May 2012; the service through Amazon CloudFront has been discontinued.
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We switched to Google Cloud Storage + Cloudflare in June 14 2014. CDN. The service through Rackspace has been discontinued.
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### Quick Guide to Updating CDN Content
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MathJax CDN content is served from the `cdn.mathjax.org` domain, see the [documentation](http://docs.mathjax.org/en/latest/configuration.html#loading-cdn). The CDN's source or *origin* is *Rackspace Cloud Files* (which uses OpenStack) and it is served via Rackspace's CDN partner, Akamai; more information can be found [at Rackspace](http://www.rackspace.com/cloud/cloud_hosting_products/files/).
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MathJax CDN content is served from the `cdn.mathjax.org` domain, see the [documentation](http://docs.mathjax.org/en/latest/configuration.html#loading-cdn). The CDN's source or *origin* is *Google Cloud Storage* and it is served via CloudFlare's CDN.
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The basic set up is that each versioned release on the CDN corresponds to a subdirectory and each of those subdirectories is an independent clone of the corresponding MathJax branch from our canonical GitHub repository (except for `1.0` which is based on the sourceforge repository).
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To update CDN content, one merely updates content in the appropriate release directory. The web-interface at Rackspace is not very useful however, so instead [Cyberduck](http://cyberduck.ch) has proven to be a reliable tool to handle uploads. |
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To update CDN content, one merely updates content in the appropriate release directory at GCS and purges the cache for MathJax.js at CloudFlare.
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### Historic documents
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* [Managing Rackspace Cloud Files & CDN]
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* [Directory structure]
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* [.htaccess settings] |
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