Presumably we all know that after the completion of the website construction, if you do not want to spend a lot of money to do Baidu promotion or other advertising, SEO is a good choice。However, many novice SEO is easy to make some low-level mistakes, and many mistakes have a great impact on the website, and once there is a problem, it is very difficult to recover, so you must pay attention to these problems before doing SEO。The following roughly summarizes the following SEO personnel pay attention to three things,...