My 2 websites was in Google first page. But suddenly one website dropped into fifth page and other not in one main keyword. other keyword that was in same position. If anybody knows please tell me why Google search engine drop websites. How can i know the reason for this issue ?
Google has introduced new algorithm called Google Panda, it will affect those sites which has copy contents or less informative so be careful about contents, always write fresh and unique contents to get ranking fast...
Google has recently introduce new policy about content . May be your content stuff is coped of other websites.
There can be a number of reasons for this. You can't just pinpoint one reason and not take the others into consideration. The quality of the content and links coming back to your sites play the most major role. Then comes the way of how you built these links and where you got the content from. The rest don't matter as much as these do. Google Panda is very strict in these terms and this is why a large number of sites have seen their rankings drop for this.