How to identify same original page in different experiments
I'm trying to figure out how to identify the experiment in which the original page is involved. For example, I run two experiments back to back on the same page, and I calculate manually the versions' ROI based on some external factors (like third-party commissions). To be able to compare apples to apples, I need to understand during which experiment the original page converted how much. The issue is that when I retrieve my third-party reports, I'll get these as referring URL for experiment #123:
And these for experiment #124:
How can I differentiate between the two original pages?
I tried adding ?experiment=123 in the original's URL when setting up the experiment, but I get confusing results, like a big chunk of traffic still visiting the same page without that parameter.
Can anyobdy help?