How to purge all files from a Pull Zone

GrandCDN provides a simple way of purging all the cached data from a pull zone. To do so, visit the pull zone management page and click on the Sync icon on the top right action bar. This will fire a configuration update that will invalidate all of the cached data for the given zone.

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Note that if you are serving large amounts of data this might put some stress on your origin server and temporarily decrease performance until new data is cached again.