Welcome to CarbonTag!

If you see this page, it is because you should be using our services.

Our product: CarbonTag Ad Pixel

Purpose

The purpose of this third-party pixel is to collect data from the performance API of JavaScript with the aim of building a model that estimates the amount of CO2 generated in online ads. Specifically, we gather the following information:

Our solution measures the carbon emission and energy consumed by ad impressions. To this end, we use an adTag which is embedded in the ad. Upon the rendering process of the ad, the ad from our client calls our domain carbontag.hiili.org to download the adTag using a specific URL where different parameters are included (e.g., campaign id, ad_id, etc). These parameters are used for reporting purposes. Our adTag collects several attributes from the browser (none of them including personal data) and sends them to our backend server sitting at server.hiili.org. Upon the reception of these attributes in the backend, our solution uses them to compute the energy consumed by the ad as well as the carbon emissions associated with the ad using our proprietary technology.

Data collection and processing

• Number of clicks on ads: This data is used to estimate the CO2 generated per each click on the ad.
• Performance data: We gather performance data to retrieve duration events, enabling us to compute more accurate CO2 consumption estimations.
• performance.getEntries: This information is essential for obtaining a comprehensive dataset that influences CO2 generation estimations.
• Navigator data: Understanding the user's platform helps us report CO2 usage based on the type of device or system being used.
• Screen data: We consider the screen size to factor into our estimations.
• Size of the ad iframe: The ad size contributes to the overall estimation of CO2 emissions.
• Parent URL: Knowing the webpage where the ad is displayed helps us understand its influence on CO2 generation.

Data Access

We access the data by inspecting the HTML of the ads and analyze the requests and responses the ad performs to the different pixels and tags that serve to load the ad’s content and track events with third-parties.

Data Storage

The collected information is also stored in a secure backend server located at Amazon Web Servers (AWS). Access to the server is limited to the team working on this project and is protected by user and password credentials.

We want to make it clear that our solution does not engage in any practices that compromise your data privacy. Specifically, we do not handle any ad targeting, geo-targeting, or buy/sell any data. We do not collect or use device IDs, employ any methods to track users, or gather information from users across multiple devices. We also do not gather any personally identifiable information (PII) or utilize PII for any purpose. Our commitment to your privacy extends to our advertising practices as well, as we do not conduct direct retargeting or contextual targeting. Furthermore, we do not capture hyperlocal data upon serving the pixel, maintain user profiles or models, use cookies, or access the local storage of the user. Your trust is important to us, and we take your privacy seriously.