Alexa ranking shows your web site ranking globally. If you want to increase that, then update your site very frequently, with unique and fresh content. Once the number of back links and the amount of traffic increased, your alexa ranking will improved automatically.
Alexa is a kind of search engine that measures the popularity of sites that are visited by users who have the Alexa toolbar installed in your browser
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and data obtained from other, diverse traffic data sources, and is a combined measure of page views and users (reach). As a first step, Alexa computes the reach and number of page views for all sites on the Web on a daily basis. The main Alexa traffic rank is based on a value derived from these two quantities averaged over time (so that the rank of a site reflects both the number of users who visit that site as well as the number of pages on the site viewed by those users). The three-month change is determined by comparing the site's current rank with its rank from three months ago. For example, on July 1, the three-month change would show the difference between the rank based on traffic during the first quarter of the year and the rank based on traffic during the second quarter.
Alexa rank show the present traffic situation of our site. It is one kind of numeric value assign by rank toolbar. If this numeric value less than before , means traffic increase and if high than before then traffic less. As we can not count this alexa rank as exact figure for our site traffic as it is assumption only. But one thing that through alexa rank , after knowing about traffic increased or decreased one can get the decision or idea for further action. As for improving alexa rank one has to increase the traffic of the website and there are many method for increasing the traffic.
Alexa give a numeric value to a particular web site according to it's popularity. It is called Alexa ranking. To increase your Alexa ranking you should keep your S.E.O work. On the other hand you can put Alexa widget in your website. It is the best way to increase your Alexa ranking.
Alexa Internet, Inc. is a California-based subsidiary company of Amazon.com that is known for its toolbar and Web site. Once installed, the toolbar collects data on browsing behavior which is transmitted to the Web site where it is stored and analyzed and is the basis for the company's Web traffic reporting.
Improve your search engine position, use social media etc then definitely it will improve your Alexa ranking.
The Alexa rank is a ranking system calculated using the Alexa toolbar. Alexa takes the browsing data from the millions of people using this toolbar and calculates the traffic ranking of each site based on reach and page views. Low traffic sites are harder to gauge accurately, but once a site reaches a 100,000 or less ranking the accuracy of the measure increases.