 In July 2013 OpenDNS said that it handled over 50 billion DNS requests daily.In many cases OpenDNS provides only negligible performance gain, but may process queries more quickly than an ISP with slow DNS servers.DNS query results are sometimes cached by routers (e.g., local ISPs' queries may be cached by ISPs' home routers), the local operating system or applications, so differences in speed may be noticeable only with requests that are not stored in a local cache.