1. A method of evaluating a performance of a content group via a computer network, the method comprising: receiving, by a processor executing on a data processing system, a request to display performance of a content group of a content provider; accessing a data structure storing, in a memory element, a plurality of keywords, a quality metric for each keyword, and an impression count for each keyword; identifying, by the data processing system, one or more keywords of the plurality of keywords of the data structure corresponding to the content group of the content provider, obtaining, for each of the one or more keywords, via the data structure, the quality metric and the impression count associated with the content group of the content provider; determining, for the content group, a performance score based on a weighted average of the quality metric and impression count of each of the one or more keywords of the plurality of keywords by performing a summation of products of the quality metric and impression count of each of the one or more keywords of the plurality of keywords and dividing the summation by a sum of the impression count of each of the one or more keywords of the plurality of keywords; and transmitting, for display on a user device, the performance score.