Is the word or string of characters in the domain name (minus the TLD Top Level Domain like .com, .net. ,etc.) in the United States Trademark Search database? if the word or string of characters is listed, there may be a trademark issue with the domain name.
DNProtect checks the United States USPTO trademark database called TESS. If part of the domain name (the part without the domain ending) appears in this database, then there may be a trademark issue with the domain name. If this is your domain name then that is OK--if there is no match in the trademark search, DNProtect may assign positive points as a part of the DNP Scoring Process. You can search the USPTO trademark database.