Over two thousand popular Internet sites do not support the work of Internet Explorer 8, says the official blog of Internet Explorer. When issuing the browser in March 2009 in the list of Compatibility View List were 3100 sites.

A year after the release of the latest version of Internet Explorer Microsoft summed up the match statistics of several thousands of popular sites, the requirements of the browser. The proportion of sites that fully comply with specified IE8 standards, was 19 percent. Another 41 percent of sites, according to Microsoft, almost compliant IE8, and 14 percent are designed to work with IE7. Just over a quarter of the popular sites were opened in the so-called regime "Quirks", which allows you to view sites on older versions of browsers and not entirely consistent with "standard" mode.

To calculate the number of sites that do not support the latest version of the most popular browser in the world, Microsoft has used statistics on the user accesses Instrument Compatibility View. IE8 browser automatically maintains statistics on the use of compatibility mode, and sends the data to Microsoft. Subsequently, Microsoft released a list of Compatibility View List, including a list of sites, as an update to the browser.

In developing Internet Explorer 8, Microsoft has tried to bring it into line with generally accepted standards for browsers. After that IE8 has ceased to correctly display many Internet sites that were designed for IE6 and IE7. The fact that earlier versions of Microsoft's browser was much less focused on open standards, shift work that broke backward compatibility mode in IE8, reports SecurityLab.

The first list of sites are displayed incorrectly in IE8, was presented to Microsoft in January 2009 during the testing browser. At that time, it included 2400 sites, among which were google.com, yahoo.com and microsoft.com.