This script, developed by Integral Ad Science (IAS), is designed to provide third-party verification for digital advertising campaigns. It operates within the browser to collect data related to ad impressions, page content, and user interactions with advertisements. The primary function is to help advertisers ensure their ads are displayed in brand-safe environments, are not subject to fraudulent impressions, and are actually viewable by users. This involves analyzing various signals from the webpage and ad containers to detect potential risks and measure key performance indicators for ad quality. The script typically initiates data collection upon an ad impression or page load, sending information back to IAS servers for analysis. It can monitor factors such as the context of the surrounding content, the geographic location of the user, and the technical parameters of the ad delivery to identify non-human traffic or unsafe content. By doing so, it helps advertisers optimize their spend by preventing wastage on invalid traffic and ensuring brand reputation is protected.