Q: For autotagging, what parameter does Google Ads include in the destination URL?
A) adid=
B) urlid=
C) utm=
D) gclid=
Correct Answer is D) gclid=.
Explanation:
If you don’t see the gclid parameter appended to your URLs after the page is fully loaded, then it’s likely that your website isn’t configured to handle query parameters in a way that lets auto-tagging work.
Read more here: https://support.google.com/analytics/answer/2938246