In simple, three steps to teach you how to know the real Alexa-alexa world rankings

In simple , three steps to teach you how to know the real Alexa

It seems that website optimization, site rankings and related topics will always be webmaster concerns.

But three steps think, how to find and retain visitors and solve some of the problems, is the webmaster should be concerned about. But often have stationmaster asked me what Alexa is, PR is what?......

I have often encountered "Alexa really so important?" is Alexa really so authoritative? And so on similar issues.
in the group yesterday, a friend mentioned about Alexa and PR issues, I wrote this summary. The reason why the two relate to each other is because I really found out their relationship.
One: What is Alexa?

Alexa is a site that is notable for publishing world rankings. Alexa, which started out as a site navigator, was founded in April 1996 to allow Internet surfers to participate more in the organization of Internet resources while sharing virtual world resources.

two: how Alexa works:

Whenever a user opens a new page with an IE browser with the Alexa toolbar, the Alexa server (data.alexa.com) receives the encrypted packet; The core information in the
packet is more than 10 parameters, including the current page address, page open time, User-side display resolution, Alexa toolbar version number, etc.
there is an important hidden parameter, the Alexa is automatically generated for each installed tool bar ID number, this number should be the only global;
Alexa through this ID for each feedback packet issued by the unique identification, which is to solve the problem of PV repeat calculation and prevent the same user multiple times to refresh cheating important means.



three, is Alexa fair?
A lot of people ask this question (I've often asked myself myself).
There is no second Web site like Alexa does not require you to insert his code in the Web page and so on to calculate the rankings. He treats all the websites of the world equally.
No matter today from China to the world authoritative news media in discussing the scale of a famous website, the Alexa is the standard.
     Here, first he is the only one in the world (now come out of a Chinese website ranking, temporarily not in the list), the second need to rule out a small number of users cheating. The third, Alexa has been constantly adjusting his algorithm, so objectively, He is still impartial and authoritative.