When a search engine (such as Google, Yahoo!, or MSN) tags your site as banned, website traffic to your site is blocked. You can be banned for hundreds of reasons, including: getting spammed, coding problems (search engines like Google favor streamlined coding), using plagiarized text taken from other websites or books, illegitimate business practices, or website content. You can be banned on one search engine (such as Google) and not on others. When a search engine blocks your site from appearing in its search results, you are not notified by the search engine. You usually need a website marketing specialist to fix the problem. Website content concerns that may result in getting banned would include having significant portions of the website full of place holder/dummy text. Often this accidentally happens when websites were built before articles/text were written, and designers used dummy text as a placeholder. If the text is total gibberish, and is not replaced with legitimate writing, it can raise a red flag for search engines. This is only a concern if the dummy text is just randomly typed in letters. For this reason, graphic designers of high standards will use a page of writing that is written in a foreign language, and not plagiarized foreign language text taken from other sources.