alexa ranking mean anything?

Some Important Disclaimers

The traffic data are based on the set of toolbars that use Alexa data, which may not be a representative sample of the global Internet population. To the extent that our sample of users differs from the set of all Internet users, our traffic estimates may over- or under-estimate the actual traffic to any particular site.
In some cases traffic data may also be adversely affected by our "site" definitions. With tens of millions of hosts on the Internet, our automated procedures for determining which hosts are serving the "same" content may be incorrect and/or out-of-date. Similarly, the determinations of domains and home pages may not always be accurate.
Sites with relatively low traffic will not be accurately ranked by Alexa. Alexa's data comes from a large sample of several million Alexa Toolbar users and other traffic data sources; however, the size of the Web and concentration of users on the most popular sites make it difficult to accurately determine the ranking of sites with fewer than 1,000 monthly visitors. Generally, traffic rankings of 100,000 and above should be regarded as not reliable. Conversely, the closer a site gets to #1, the more reliable its traffic ranking becomes.

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