Preserve Cookies between Domains
Web Browsers are constantly evolving, and privacy and web browsers are changing. When a visitor visits your site, ConversionRuler attempts to identify them uniquely by assigning a User ID using a first-party Cookie.
So, for example, if your site runs on the following domains:
What happens is upon each page load, the Tracking Snippet looks at each
<a> tag on the page, and modifies the
href attribute to include query string values
__cr_user which are used to pass User identity information between the two sites.