Site deindexed without a reason

This happened to me a few days ago as well. Completely white hat site but with a lot of PLR content, and the one article that I wrote myself was jacked by some other dude, so nothing was unique.

I guess I'll have to throw up some unique articles now and redesign the site to make it unique. It was a free template given by the affiliate product I was promoting.

i figured out i had an error with my robots.txt file.

If your site gets deindexed, the first step is to go into google webmaster tools, and submit your sitemap, i was getting the error "network unreachable" for both my sitemap and rss feed in google webmaster tools. if you get that error, or something similar, then follow this guide to figure out what the problem could be:

www[DOT]homewithandrew[DOT]com/index.php/debugging-the-network-unreachable-robots-txt-unreachable-error/

Click to expand...

I don't want to be a conspiracy theorist but what if someone back-linked your site to Sabotage you? Like your competition? To a black L!sted Site? I wonder if that would be possible as a I saw this as a possibility on another forum? Additionally I don't know if something similar has happened to me recently. I will have to wait a few days. I was on the First page of G now gone. Still indexed though.

Here's a few reasons why this can happen:

1) If you link to any link farms;

2) You have cloaked pages on your server.

the reason for these de-indexings are the keyword links which are like doorway pages which are not unique and are not allowed according to google's rules