Here are a few flags that might mean your site is forced to have lower rankings than it deserves due to the penalty or filter: 1. Abrupt Google referral traffic drop or sudden loss of major rankings. This change may be applied to the whole site i-e problem is in the external backlinks or for the problem internally. Similarly, the change may affect all your main terms or only a small number of of them. 2. Enormous differences in rankings if you query general search and a single database. This one is not confirmed officially but some webmasters notice that their site rankings are much lower in general google.com search than when checking a separate database directly. 3. Domain issue: (yourdomain.com)search. Note that this can be a sign of some issue only for established sites – new sites can be found nowhere for the domains search quite naturally. 4. Return 0 results (again, for established, prior indexed sites). This flag is the most hazardous one: it might mean some dramatic error on your side (you might have mixed something up with Robots.txt, robots meta tags or redirects) or you might have done something really bad. In this case, reconsideration request is your only hope,
Thank you for letting us know about this information as many people don't know the reasons why google penalize them.
If you are using black-hat SEO for promoting your site then also you will be banned from Google. Some black0hat SEO techniques: 1. Hidden text 2. keyword stuffing 3. duplicate content 4. links from bad neighbourhood
I don't really understand the first 3. Hidden text and keyword stuffing are the same? is that including the alts: alt="keyword"? And the second thing. Duplicate content: Means that i cannot use plugins like wp-robot or Unique Article Wizard?
The problem with these penalties is that many concerned website owners can spend a lot of time and resource trying to establish the reason behind a suspected penalty - without any way to confirm that a penalty is actually in place. How about Google and other search engines disclosing the penalty status to website owners? It's only fair. This could be done without revealing too much information to those who try to trick the system. Join our campaign to introduce a bit more transparency in the delicate issue of search penalties..