1. A computer-implemented method for automatically determining a visual appeal of online content, the method implemented using a visual appeal determination computing device coupled to a user interface and a memory device, the method comprising: storing, by the visual appeal determination computing device, a plurality of software implemented algorithms in the memory device, each algorithm comprising one or more rules representing expert knowledge for subject matter of online content items, the rules are capable of recognizing graphic content parameters, recognizing textual content parameters, and relating the graphic content parameters and the textual content parameters to a set of desired parameters accessible to the rules based on the expert knowledge, the parameters relating to the appearance of the graphic content and the textual content, each algorithm pertains to a different aspect of online content; receiving, by the visual appeal determination computing device, one or more generated items of online content from a content provider computing device; determining, by the visual appeal determination computing device, graphic content parameters and textual content parameters of the received items of online content by parsing the online content using the plurality of algorithms according to the different rules included in each algorithm, determining the graphic content parameters and textual content parameters include determining a relative size of a font with respect to other textual content, a location of the textual content within the content item, a location of breaks used in text wrapping in the textual content, a relative alignment of the textual content, a readability of the textual content based on font colors and background colors, and an orientation of graphic objects within the content item; comparing, by the visual appeal determination computing device, the determined parameters to the set of desired parameters by determining whether each aspect meets a respective predefined threshold value; ranking, by the visual appeal determination computing device, the items of online content based on the comparisons; and providing guidance for improving a quality of the items of online content by outputting, by the visual appeal determination computing device, the ranked items of online content to the content provider computing device.