Abstract: In a method for inspecting and tailoring a predefined point of a moving product web (2), the moving product web (2) is located at least partly on a winder (3). Both a relative running length L of the product web (2) and an associated angle of rotation ? of the winder (3) are captured. From these values, the absolute running length LTOT of the moving product web (2) is then calculated. A camera (34) captures the moving product web (2). The camera value is compared with a reference value (36) and, together with the absolute running length LTOT of the moving product web (2), is stored in a file (37). At a later time, with the aid of the file (37), the defective points of the moving product web (2) are moved to. The absolute running length LTOT is determined again and compared with the file (37). Therefore, the defective points can easily be separated out from the moving product web (2).