While you may not be trying to manipulate Google in anyway shape or form, you may still be subjected to the ultimate fear of having your site excluded from Google’s index. Google tries very hard to ensure that they only punish the sites that deserve it. If you are not sure how you could be practicing the wrong SEO techniques, visit this site that lists the main factors that will negatively influence your site to Google’s bots.
According to WebConfs.com, it is necessary to clarify that the fact your site is missing from Google’s index can mean two things:
a. You have not been included yet, though you have submitted an inclusion request. This is the part of the sandboxing process that you have absolutely no control over.
b. You have been excluded from Google’s index because of violation on your site.
Over optimizing your site can lead to this dreaded day when your site is banned. As a general rule of thumb, NEVER practice any black hat SEO techniques. This includes, but does not limit linking farms, keyword stuffing, invisible text, spamming and doorway pages. Reinclusion can be a very lengthy and demanding process. Correct the mistakes you made immediately, contact any spamdexing relationships you had in the past and file a reinclusion request.
View my next entry regarding reinclusion if this has already happened to you.