1. Duplication
There are two types of duplication from Google's perspective. Internal by which we mean the same page can be accessed by two or more different urls and cross-domain where content is exactly the same as on another page on another domain. Both confuse Google because it doesn't want to serve a dozen identical pages for one specific search.
2. Poor editorial qualityIf content is not written correctly, has inconsistent spelling and poor grammar then it is going to be scored poorly. Your content is going to be read by your clients so check twice and publish once.
3. Too genericAn expert article offers unique insight, analysis and educated opinion. If your article or web content is lacking then not only will your target audience be turned off but Google will be too.
4. Too shortGet the balance between brevity, quality and accuracy and your target audience will respect you and Google will score you - easy!
5. Too longIt’s suggested 600 words of content is about right but clearly it all depends on quality and content.
