1. A method performed by one or more server devices, the method comprising: representing, by the one or more server devices, a web site using one or more sets of statistics; generating, by the one or more server devices and using the one or more sets of statistics, a score for an image that is associated with the web site, where the generating is based on: a color associated with the image, where the color is associated with a skin tone, and a distribution of the color across one or more other images associated with the web site; associating, by the one or more server devices, the score with the image; and using, by the one or more server devices, the associated score to determine whether to provide the image to a user.