Affiliate tracking for your MemberStack site. One snippet, ten minutes.
Paste one script tag into your site's custom code, keep the ?via= links your affiliates already share, and Qanary attributes the sale straight through MemberStack's gated sign-up.
settings → custom code → head, before . that's the whole install.
- ~10 minutes, no developer required
- Attributes through gated sign-up
- Free plan, no card required
Gated sign-up shouldn't mean gated attribution.
However you're tracking referrals on MemberStack today — a spreadsheet, a generic pixel, or nothing yet — attribution needs to survive ad blockers, the commission math needs to survive an audit, and the payout needs to go out on a rail you already use. Here's what one script tag adds:
Tracking it yourself
Basic click tracking at best — no coupon-code fallback for ad blockers or podcasts, no fraud check before a commission is owed, and payouts mean a manual spreadsheet.
Qanary
One script tag in Settings → Custom Code → Head, before the closing </head>. Coupon-code fallback, fraud checks before commission, and payouts through Wise or PayPal — the same system whether you're on MemberStack or anywhere else.
Paste, stamp, verify. Three steps.
1. Paste the tracking snippet — Settings → Custom Code → Head, before the closing </head>. It sets the
first-party attribution cookie when a visitor lands with
?via=AFFILIATE_CODE and records the touchpoint.
2. Carry the referral into checkout — MemberStack sites usually check out through Stripe — pass the Qanary stamp into your Stripe Checkout call server-side (client_reference_id), or simply keep the ?via= parameter on your pricing links and let the cookie rung pick it up.
3. Verify — open your site with a test ?via=,
run a test-mode checkout, and confirm the conversion lands attributed — or ask
your coding agent to run the MCP diagnose_attribution tool.
<script src="https://app.qanary.cloud/qanary.js" data-qanary="YOUR_PROGRAM_SLUG" async></script>
Paste this exact tag into Settings → Custom Code → Head, before the closing </head>, publish, and it's
live. Swap YOUR_PROGRAM_SLUG for the program slug from your
Qanary dashboard.
One tag. Three jobs.
Sets the attribution cookie
Reads ?via=AFFILIATE_CODE off the URL the moment a visitor lands
and records the touchpoint — no configuration beyond the program slug.
Stamps your Stripe checkout
Feeds the stamp into MemberStack's Stripe Checkout call as client_reference_id, so a new member's plan still traces back to the right affiliate.
Verifiable end to end
Ask your coding agent to run diagnose_attribution and it walks
visit → identify → webhook → attribution → ledger, so a stalled conversion is
never a mystery.
Whatever's gated behind your paywall.
Gated content behind MemberStack
The tracking snippet sits independently of MemberStack's own auth logic — it attributes the referral before MemberStack even checks membership status.
Free trial → paid conversion
A visitor signs up free and upgrades later — the attribution cookie set at first visit still gets credit when the upgrade fires the webhook.
Multiple pricing plans
Whichever plan a referred member picks, the commission reflects the actual sale — no flat per-signup rate that under- or over-pays.
Migrating from another tool
Swap the old tracking snippet for Qanary's in the same custom code field — existing ?via= links your affiliates already shared keep working.
See it side by side.
| Capability | Tracking it yourself | Qanary |
|---|---|---|
| Setup time on MemberStack | Custom dev project | ~10 minutes |
| Attributes through gated sign-up | No | Yes |
| Fraud checked before commission is owed | No | Yes |
| Falls back with no page to instrument | No | Yes, via coupon codes |
It works the day you publish.
- Live the moment you publish. The snippet is a plain script tag pasted into a field MemberStack already gives you — nothing to submit for review, nothing to wait on.
- Doesn't slow down your site. Loads with
async, so it never blocks page rendering while it sets the attribution cookie. - Coupon codes cover the rest. A podcast mention or a DM with no link at all still attributes through a coupon code — see links & coupon codes.
- An agent can paste it for you. Point Claude Code, Cursor, or Codex at Qanary's llms.txt and it can install the snippet and verify it in one prompt.
Fair questions.
Where exactly does the snippet go with MemberStack?
Settings → Custom Code → Head, right before the closing </head> tag, then publish. It needs to load site-wide, including on pages behind MemberStack's gate.
Does the snippet slow down my site?
No — it loads with the async attribute, so it fetches in the
background and never blocks page rendering.
Does attribution survive a free-trial-to-paid upgrade?
Yes — the attribution cookie is set on first visit and persists, so when a free member later upgrades to a paid plan, the commission still credits the original affiliate.
How does the stamp reach MemberStack's Stripe checkout?
Pass Qanary.checkoutStamp().ref into the client_reference_id field when your server creates the Stripe Checkout Session that MemberStack triggers.
Can an AI agent install this for me?
Yes — point Claude Code, Cursor, or Codex at Qanary's llms.txt
and it can install the tracking snippet and wire a webhook from a single
prompt. See the AI agent page for the exact setup.
Everything you need to start tracking.
Paste the snippet. Start tracking tonight.
Join the waitlist now; when registration opens, wire your MemberStack site in ten minutes.
Join the waitlist