Most of the world's telecommunications laws and regulations require websites that are not used for strictly private or personal use to have an imprint that complies with the law.  This includes websites that contain a blog or texts of a journalistic nature.

The name of the contact person responsible for the content must be mentioned in the imprint, together with an address and a way to reach this person.  It is possible that other legally prescribed information must be included in your imprint.  Consult an expert to find out what specific information is needed for your site.