Impact parameter
What is the irgwc parameter?
irgwc is Impact's impact gateway flag. irgwc=1 marks traffic that passed through Impact’s gateway. You will see it beside irclickid in final URLs and in your web analytics as a common query parameter on affiliate-driven sessions.
Where it appears
Appended to the merchant URL after the redirect
Example
https://brand.com/product?irclickid=...&irgwc=1If irgwc is missing
Harmless on its own — irgwc typically travels with irclickid, and its absence matters only if irclickid is missing too.
How Impact tracking fits together
Impact issues each brand program its own tracking domain — typically a subdomain of pxf.io, sjv.io, or evyy.net, or a branded domain like goto.walmart.com. The path encodes your campaign and the destination; there is usually no visible destination URL inside the link.
On click, Impact registers the event server-side and redirects to the merchant, normally appending an irclickid. Because the destination is invisible from the link itself, the only way to know where an Impact link goes — and whether it still works — is to actually follow it.
Frequently asked questions
What does the irgwc parameter do?
irgwc is Impact's impact gateway flag. irgwc=1 marks traffic that passed through Impact’s gateway.
What if irgwc is missing?
Harmless on its own — irgwc typically travels with irclickid, and its absence matters only if irclickid is missing too.
Is irgwc in my analytics affiliate traffic?
Yes — if irgwc shows up in your site analytics or server logs, that traffic arrived via Impact affiliate links.
Related
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Parameter checks are one of five validations Afterlink runs on every Impact 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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