There may be violations. Pasture QR code is a QR code online service website, which provides technical support and industry solutions for the generation, beautification, printing, statistics and management of QR codes. The signature of the forage QR code cannot be used, because the content in the QR code may be illegal, so the forage QR code blocks the relevant content, and scanning the code will prompt that the access to the QR code has been stopped.