The privacy policy is the most important part of a blog because it will protect visitors’ personal information from misuse or illegal data collection. Privacy policy is an agreement between the blog owner and visitors regarding how data provided or collected from visitors is used, stored and protected. The blog’s privacy policy usually contains information regarding what data is collected, such as IP addresses, names, e-mail addresses, and how this data is used. When a visitor enters a blog, you should read and understand the privacy policy to feel safe.