The new purge by cache tag functionality in Akamai’s Fast Purge is now available to all Akamai content delivery product customers. To get to this point, we went through an exciting, year-long beta with more than 200 participants purging ~200,000,000 tags. During this time, we noted some fascinating (and surprising) ways that customers leveraged tags in their caching strategy -- we’ll share our six favorite here.  \r\n But first, some background on cache tags, and why you’ll love this new functionality. Cache tags are a convenient way to update cached content on edge servers. If you have a collection of objects that tend to be refreshed at the same time, you can now associate them collectively with a single cache tag that allows you to purge all content possessing this tag with a single request.…