I am thinking at this scenario : 1) Somebody register a domain name... 2) Adding some links, adding some pages 3) google index his pages 4) He don't care of it, let's say that guy wish a real life, and even don't pay his hosting fee and annual reg fee for the domain name 5) google try to crawl the website, and get an DNS error, so it will drop it from the serps, but it will try on a later date 6)The domain name, got expired, 7) You register it... 8) Google will try to access your website and will find it online,so it will add it back (because the index page will return a 200 OK status code,not a 404 error) Also ... something suspicious , if you register an .edu domain name, it will be indexed in google serps within a few hours, even if you didn't point any backlink to it ...
... or the fact that there are links to the site? http://siteexplorer.search.yahoo.co...bwm=i&bwmf=s&bwmo=&fr=yfp-t-501&fr2=seo-rd-se
With a proper 301 server status redirect, those would disappear. But Site Explorer did bring up an interesting thread: http://forums.digitalpoint.com/showthread.php?t=95772 Apparently, VS is / was using the redirect offered by the registrar of the domain... This is what you do not want to see: http://72.14.253.104/search?hl=en&q=cache:www.fashionblender.com