Impressions
GIF (Pixel)
Pixel URL's are structured slightly differently from the standard reporting URL's to avoid conflicts with query parameters. In general they follow this format:
https://data.withcubed.com/[aid]/cubedimpression.gif
For example
https://data.withcubed.com/[aid]/cubedimpression.gif?medium=[medium]&source=[source]&campaign=[campaign]&content=[content]
Debugging
As the response for this URL has to contain a 1x1 pixel gif, validation messages
are available via HTTP response headers prefixed with CUBED-
Third-Party Cookies
To track impressions, third-party cookies are used. In CUBED Attribution this is achieved by generating a random Sync ID for every impression and storing this into a third-party cookie.
When the user returns to the site. This Sync ID is used to join the two visitors together.