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What is DNS caching?

April 26, 2017caching DNS

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What is DNS caching?

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The DNS server translates the Domain Name into a numerical value that the computers on the Internet recognize. The DNS server saves or caches previous translations so that later requests can be handled much more quickly (the name server reads the stored information and does not have to perform a translation/search each time the name is resolved). The cache of every DNS server is deleted periodically. The length of time between purges is different for each ISP. 131.