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Method and system for increasing speed of domain name system resolution within a computing device

  • US 8,671,221 B2
  • Filed: 02/24/2011
  • Issued: 03/11/2014
  • Est. Priority Date: 11/17/2010
  • Status: Active Grant
First Claim
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1. A system for resolving domain name system (DNS) queries, comprising:

  • a communication device configured to resolve DNS queries, wherein the communication device further comprises a memory and a processor that is configured by the memory;

    a cache storage for use by the communication device; and

    a network of authoritative domain name servers,where in a process of the communication device looking up a DNS request within the cache storage, if the communication device views an expired DNS entry within the cache storage, the communication device continues the process of looking up the DNS request in the cache storage while, in parallel, sending out a concurrent DNS request to an authoritative domain name server that the expired DNS entry belongs to.

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