Systems, methods, and media for detecting suspicious activity

A system for detecting suspicious activity from a plurality of websites, the system comprising:

• a server that includes a hardware processor that:
• receives advertisement impression information associated with a plurality of pages;
• determines, from the received advertisement impression information, a viewability statistic for each of the plurality of pages, wherein the viewability statistic indicates a likelihood of whether an advertisement displayed on a webpage was never within a viewable area in a browser window rendered by a browser application;
• determines a viewability score for the advertisement impression based on the viewability statistic, wherein the advertisement impression is identified as likely being suspicious based on the determined viewability score;
• and
• transmits information relating to the advertisement impression identified as likely being suspicious that inhibits an advertisement placement from being purchased.

A non-transitory computer-readable medium containing computer-executable instructions that, when executed by a processor, cause the processor to perform a method for detecting suspicious activity from a plurality of websites, the method comprising:

• receiving advertisement impression information associated with a plurality of pages;
• determining, from the received advertisement impression information, a viewability statistic for each of the plurality of pages, wherein the viewability statistic indicates a likelihood of whether an advertisement displayed on a webpage was never within a viewable area in a browser window rendered by a browser application;
• determining a viewability score for the advertisement impression based on the viewability statistic, wherein the advertisement impression is identified as likely being suspicious based on the determined viewability score;
• and
• transmitting information relating to the advertisement impression identified as likely being suspicious that inhibits an advertisement placement from being purchased.