have the same question and now tks guys for clear information.

Alexa rank show website visibility in the world and your target country so alexa rank show your passion by how man traffic you are gating like if you are gating good traffic on your website so your alexa rank will be low.

Alexa Traffic Rank is an estimated measure of a site popularity when it is compared with others and that estimation depends on the number of 1) Visitors for the site and 2) Pages viewed on each visit .Is it important? The answer is Yes and No ... For most site owners, ‘how a website is doing’ is of course very important, however, when assessing your own website Google might be more important than Alexa Rank.

Alexa is one of most advance analytics website which analyse the all search date and other data. After that they provide the ranking of sites. It consider the search traffic, keyword traffic, website keyword raking after that they will provide the over all ranking.

Alexa is a website that gathers data from websites around the world. It records how many visits, where the visits, originated (by referring website and country), and how long the visitor stays on the website.

Alexa ranks websites by popularity on a global scale. For example, websites like Google or Facebook would have low Alexa ranks, compared to someone's blog.

Alexa is one of the leading internet statistics engines. It keeps a "top billion" chart, where every webpage on the planet has its place. Beginning with Google and Facebook, it goes all the way down to the gazillionth site no one knows about. It's a chart that gives you insight on how your business is doing through calculating the popularity of your site.

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Alexa rank is a tool by which one can check the ranking and popularity of sites.
Through this we can check our ranking globally also.

These is an standard ranking strategy service offered by amazon these will give your ranking statistics based on three month traffic statistics..

Alexa Traffic Rank is a rough measure of a website's popularity

a way by which the traffic of a website is known

These is an standard metric of the traffic rank position in the country vice and all over world also,it give the rank on past three months traffic report..

Alexa
 

Alexa rank is your website rank around the world based on your traffic and updates you are giving on the website.

Alexa ranks you by the amount of traffic your site gets visavis your competitors.

Alexa measures the rate of guests to a specific site. Alexa can gauge just a little rate of web clients, and these are the ones who have Alexa toolbar introduced. So the higher the site activity to a site, the higher its rank is.