Evaluating the quality of web-based properties

A computer-implemented method that, when executed by a computing device, evaluates quality of web-based properties, the method comprising:

• receiving an advertisement request from a web-based property, wherein the web-based property is associated with an identifier;
• determining, utilizing a first computing process, that a quality score has been assigned to the web-based property;
• serving an advertisement based on the quality score assigned to the web-based property;
• determining, utilizing a second computing process, that the quality score assigned to the web-based property is invalid;
• modifying the quality score assigned to the web-based property;
• determining, utilizing a third computing process, that the served advertisement is to be changed based on the modified quality score assigned to the web-based property;
• and
• serving a different advertisement to the web-based property in response to a subsequent advertisement request.

One or more computer-readable storage media having computer-executable instructions embodied thereon that, when executed by a computing device, perform a method for evaluating quality of web-based properties, the method comprising:

• receiving an advertisement request from a web-based property, wherein the web-based property is associated with an identifier;
• determining that a quality score and at least one contextual information category have been assigned to the web-based property;
• serving an advertisement based on the quality score and contextual information category assigned to the web-based property;
• determining that the at least one of quality score and at least one contextual information category assigned to the web-based property is invalid;
• modifying the at least one of the quality score and the at least one contextual information category that is invalid;
• determining that the served advertisement is to be changed based on the modified at least one of the quality score and the at least one contextual information category assigned to the web-based property;
• and
• serving a different advertisement to the web-based property in response to a subsequent advertisement request.