Why Google Dis-index your site?

There are many reasons why Google removes you from your search engine. Most popular reason is if your site hosts a malware or if you violate some of their privacy policy such as higher keyword density, black hat SEO ideas and so on. If you use LinkFarm then Google penalize you so you need to be careful while you are promoting your blog. Never always think of Traffic but try to make your content unique. If you copy someone's content without source then you will be banned. Google is really strict so you must follow every guidelines.