Post Affiliate Pro parameter
What is the a_aid parameter?
a_aid is Post Affiliate Pro's post affiliate pro affiliate id. a_aid is your affiliate identity in Post Affiliate Pro, the white-label software behind thousands of small-merchant in-house programs. Small merchants restructure sites often, and each restructure is a chance for a_aid links to silently die.
Where it appears
In your link AND it must survive to the final page
Example
https://merchant.com/?a_aid=youraffid&a_bid=11112222If a_aid is missing
A stripped a_aid means no attribution — Post Affiliate Pro tracks via this parameter reaching the merchant’s pages, with no network hop as backup.
How Post Affiliate Pro tracking fits together
Post Affiliate Pro tracks via parameters (a_aid, a_bid) on the merchant’s domain, read by the software’s script or a redirect script (often scripts/click.php) that sets the affiliate cookie.
Attribution depends on the merchant keeping the software installed and the specific banner (a_bid) alive. Both are invisible from the outside except through behavior: dead banners redirect oddly or drop parameters.
Frequently asked questions
What does the a_aid parameter do?
a_aid is Post Affiliate Pro's post affiliate pro affiliate id. a_aid is your affiliate identity in Post Affiliate Pro, the white-label software behind thousands of small-merchant in-house programs.
What if a_aid is missing?
A stripped a_aid means no attribution — Post Affiliate Pro tracks via this parameter reaching the merchant’s pages, with no network hop as backup.
Is a_aid in my analytics affiliate traffic?
Yes — if a_aid shows up in your site analytics or server logs, that traffic arrived via Post Affiliate Pro affiliate links.
Related
Check every affiliate link you've ever published
Parameter checks are one of five validations Afterlink runs on every Post Affiliate Pro link. Afterlink scans your entire YouTube channel or website, follows every redirect chain, and alerts you the day a link breaks.
Run a free scan