Hi , I have more than 50 sites . about 90% of sites after 2 or 3 day site down were removed from google search . average of ( each domain ) 10,000 - 15,000 pages suddenly were deleted ! Sites have same content . with different template . I want to know My sites added to Google blacklist ? if yes . what I must do ? ( now I parked all domains . maybe the problem fixed later ? ) Any thing you know , please post it . thanks. waiting for your answer .
How long have they been removed. If not long keep site the same and wait a few weeks to see if they get listed again.
Thanks for you comment . But I want to know My sites added to black list or it was just a warn to me ? and another question . I add all of my sites 3-4 months ago to google . but 2 of them don't indexed . ( allh.info and bmmb.info ) Why ? the content are same but ... . ( what about these 2 sites ? are they added to black list ? ) Thanks . Waiting for your comment .
You answered it yourself. All the sites are the same content and probably not original to your sites so duplication content filter has hit you. If your content is not unique you should expect the duplicate pages to be removed from Google's index.
you say all the site have the same content, thats why google put your sites in blacklist. no duplicated content.
Ok . I know . now , what I should do to remove from google blacklist ( I know that duplicated content is wrong ! )
its gonna be difficult. you shouldnt have used duplicate content in the first place... try reading the google blog or emailing them.
When your site is compliant with the Webmaster Quality Guidelines you can request a reinclusion request via your Google Webmasters Central - http://www.google.com/webmasters
Ah but there's the rub, how do you know your site is "really compliant" with the Webmasters Guidelines if you weren't sure of what caused the problem with Google in the first place? Would it really hurt Google to send a quick email through Webmasters saying "Hey nice site! However we dropped you out of the index on Monday night due to some questionable duplicate content issues, sorry. Fix those and fill out a reconsideration request. Thanks for using Google, have a great holiday!" I might as well ask Santa for my very own personally trained kung-fu fighting monkey army before I will get such consideration from Google.
Thanks for your comments ! But after 1-2 months , still no indexing ! , I park domains and request Google to re index but still ... . What is your idea ? Thanks .