1. Duplicate ContentYou’ve heard that Google likes lots of content and that can sometimes be true. While making a multitude of very similar pages might seem like a smart way to create content on your website it probably won’t benefit you in the rankings. When Google finds multiple pages on your website with the same content it is likely to ignore most of them and remove them from its index. And, the pages it does leave in its rankings will be negatively impacted too.
2. Bad LinksYes, you can have links coming to your site that are bad for you. You’ve probably seen websites that offer no value to anyone and have been created just for link swapping – sometimes called link farms. They encourage you to switch links with them for “SEO Benefit”. Don’t be fooled!
3. Hidden TextBlack text on a black background, tiny text that no user is likely to see, text behind pictures… and the list goes on. It might seem clever but the search engines are well aware of it. Could you get away with it? There is a very slim chance that you could. Much more likely it will be found and when it is a severe penalty will apply.
4. Keyword StuffingYou want to mention important words through your content so does it matter how you do it? Yes it does. Your content should be written for your visitors. It is important to mention what your customers will be searching for in your content but you don’t need to force it. Heavy repetition of words and words out of context can actually get you penalised.
5. CloakingThis is the term for techniques which have content for search engines to find but not users. Some very big companies have even tried this technique and when they were found out they were completely removed from Google’s index. Cloaking is generally not an SEO mistake that you can make unintentionally.
article source:
http://www.8bm.com.a...you-must-not-do