All the data provided by Alexarankcheck.com are purchased from the authorized service of Alexa Web Information Service(aws.amazon.com/awis), which is provided by the parent company of Alexa.com--Amazon.com. So all the data you see here are exactly the same as the real-time ones in alexa system. Moreover, you can get more comprehesive alexa data here, such as the yesterday, 7-day average, and 1-month average alexa rank, which are no long available at alexa.com without paying.
What is alexa rank?
Alexa is one of the leading internet statistics engines. Briefly speaking' it's a chart that gives you insight on how your business is doing.
How important is alexa rank?
It helps Webmasters and advertisers see the true marketing potential of your Web site. It is a good tool to have in view of search engine optimization.