How does Alexa get Contact Info for sites?
The site owners, addresses, and phone numbers shown in the Alexa service are aggregated directly from InterNIC, Whois.net, Ripe.net, Apnic.net and other sites that are in the business of registering domain names. This domain registration information is publicly available to any Web user. E-mail addresses may be gathered from the actual website, or from domain registration information. If the contact information for your URL is wrong, or you would like to have it unlisted in the Alexa service, you can change it at http://www.alexa.com/edit/contact. Once there, simply enter your URL and follow the instructions. Please note that it can take up to two weeks for these changes to take effect.