A list of all the sites in the Web, ordered by the traffic Alexa obtains the ranking, by means of the analysis of the use that gives the million him users to the Web. Especially it analyzes those that they have installed the bar of tools of Alexa. Also the aquiridos data of other sources of traffic are analyzed. Collected is become ordained, summarized, anonimiza, it is counted and it is computerized. Later the calculations are realised until, finally, the traffic ranking is obtained, which will be in the bar of tools. The process is relatively complex, but you have interest in this subject, continues reading. What is the Ranking of Traffic? The traffic ranking is based on the data picked up of the million users whom they have installed this bar.
In addition the data of traffic and other sources are considered that also replace this type of information. It is a combined measurement of seen pages and usuary (Reach). Like first step, daily Alexa calculates the reach (reach, in English) and the amount of pages seen of all the Web sites. The main ranking of traffic is based on a value derived from these two divided equally amounts (the ranking of a site reflects the amount of users that visit the site, and the amount of pages seen by these users). The quarterly change determines when comparing the present ranking of the site, with the one of three months ago. For example, for the ranking of the 1 of July, the difference between the ranking based on the traffic of the first trimester is taken into account the year, with the one of the second trimester. Which are the Web sites and host? The traffic calculates for the Web sites, which normally are defined according to their level of dominion. For example, the lodgings Web, carpoint.msn.com slate.msn.com, among others, are considered part of a same site, because all reside in the same dominion: msn.com.