Internet Explorer 6 China and South Korea. A common criticism of Internet Explorer is of the speed at which fixes are released after discovery of the security problems. Microsoft attributes the perceived delays to rigorous testing. A posting to the Internet Explorer team blog on August 17, 2004 explained that there are, at minimum, 234 distinct releases of Internet Explorer that Microsoft supports (covering more than two dozen languages, and several different revisions of the operating system and browser level for each language), and that every combination is tested before a patch is released. In May 2006, PC World rated Internet Explorer 6
Internet rush hour network. These peering agreements between Tier 1 ISPs have no overt settlements, meaning there is no money exchanged for the right to pass traffic between Tier 1 peers. Tier 2 and Tier 3 ISPs are customers of the Tier 1 ISPs and rely on the Tier 1 ISPs to route their traffic across the Internet. This is a disadvantage for the lower tier ISPs due to the amount of traffic hops and shared common gateways to Tier 1 ISPs. The shared common gateways are choke points that contribute to the Internet Rush Hour. Each Tier 1 ISP has a peering