FirstPromoter parameter
What is the fpr parameter?
fpr is FirstPromoter's firstpromoter referral handle. fpr carries your promoter handle on FirstPromoter-powered SaaS referral programs. One parameter, on the vendor’s own domain, read client-side — which is why vendor-side redirects and consent-manager script blocking are its two classic failure modes.
Where it appears
In your link AND it must survive to the final page
Example
https://saasproduct.com/?fpr=yournameIf fpr is missing
A stripped fpr = a dead referral: FirstPromoter attribution depends entirely on this parameter reaching a page with the FirstPromoter script before signup.
How FirstPromoter tracking fits together
FirstPromoter attributes referrals via the fpr (or fp_ref) parameter read by a script on the vendor’s site, which sets a referral cookie for the signup that follows.
Everything rides on that one parameter surviving to a page where the script runs. Marketing-site redirects, domain migrations, and cookie-consent flows are the usual points of failure.
Frequently asked questions
What does the fpr parameter do?
fpr is FirstPromoter's firstpromoter referral handle. fpr carries your promoter handle on FirstPromoter-powered SaaS referral programs.
What if fpr is missing?
A stripped fpr = a dead referral: FirstPromoter attribution depends entirely on this parameter reaching a page with the FirstPromoter script before signup.
Is fpr in my analytics affiliate traffic?
Yes — if fpr shows up in your site analytics or server logs, that traffic arrived via FirstPromoter affiliate links.
Related
Check every affiliate link you've ever published
Parameter checks are one of five validations Afterlink runs on every FirstPromoter link. Afterlink scans your entire YouTube channel or website, follows every redirect chain, and alerts you the day a link breaks.
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