Do 301 or 302 redirects break affiliate tracking?
Short answer: A redirect status code alone does not determine whether affiliate attribution survives. The important questions are whether the destination receives the referral identifier, whether the tracking script executes before navigation, whether cookies can be read on the next domain, and whether a server-side event later links the referred visitor to a customer. A 301 is generally a permanent redirect signal; a 302 is temporary. Neither guarantees correct affiliate tracking.
Google's redirect documentation describes how search engines interpret permanent and temporary redirects. That is an SEO concept, not proof that an affiliate platform preserved a referral token.
Where tracking is commonly lost
| Journey | Potential failure | Diagnostic |
|---|---|---|
| Partner link → short URL → landing page | Query string dropped by redirect | Inspect every Location header |
| Landing page → separate app domain | Cookie cannot cross domain boundary | Check documented cross-domain handoff |
| Landing page → immediate redirect | Tracking script never runs | Test with browser network trace |
| Signup → payment provider | Customer record lacks referral ID | Trace internal customer and billing IDs |
| Campaign email → mobile app | Browser-to-app transition loses context | Test supported deep-link flow |
For example, a partner sends example.com/?via=alex to a short URL. If the redirect resolves to app.example.net/signup without a supported referral handoff, the signup may complete but remain unattributed. The solution depends on the tracking provider; appending arbitrary parameters is not always sufficient.
When to use 301 and 302
Use a permanent redirect when the URL has genuinely moved permanently. Use a temporary redirect for a reversible routing decision. Avoid treating a 302 as an attribution strategy or changing canonical URLs to hide referral parameters. Keep one stable canonical landing URL for search and let the attribution system manage visitor identity separately.
When debugging, inspect the full chain rather than only the final response. A chain can include CDN, URL shortener, geographic routing, WordPress redirect and application router. Each hop should preserve the intended parameters or deliberately hand off the identifier using a documented API.
Rewardful example: direct pages and cross-domain navigation
Rewardful's cross-domain tracking guide says that ordinary link navigation between configured domains can pass a referral identifier, but JavaScript and 301/302 redirects may need a separate API-based handoff. It also documents that cross-domain tracking is plan-dependent. That limitation is specific to Rewardful and should not be generalized to every affiliate product.
Its Direct Page Tracking documentation describes clean affiliate landing URLs that attribute visitors through a JavaScript source call. It warns that specifying a source can overwrite an existing referral. Review attribution precedence before enabling such pages.
Repeatable six-case QA plan
- Open the affiliate link in a clean browser profile and capture the entire network redirect chain.
- Verify the original token survives or is translated through an officially supported mechanism.
- Inspect the tracking cookie's domain, expiration and consent behavior without bypassing user choice.
- Complete a test signup and confirm the referral is attached to the intended customer ID.
- Complete a synthetic paid conversion and confirm the correct commission state.
- Repeat with a direct return visit, a different browser, a cross-domain route, and a blocked-cookie scenario.
Record expected versus observed attribution in a table, along with redirect headers, test IDs and platform version. Never assume a working desktop journey proves mobile app or privacy-restricted browser behavior. The cross-domain affiliate tracking guide covers broader domain boundaries, while UTM versus referral IDs explains why campaign analytics tags are not commission identifiers.
Diagnostic example: Suppose a redirect chain is /go/partner to /pricing?via=partner to /signup. The first hop preserves the token, but the second strips it. If the tracking script never captures the visitor before the second hop, the signup may be unattributed. Fix the redirect or implement the tracking provider's documented handoff, then repeat the full signup and payment test. Merely checking that the final page returns HTTP 200 would miss the defect.
Keep an evidence table with the original partner URL, each response code, each Location header, final URL, observed cookie or server-side identifier, test customer ID and resulting commission state. Run the same scenario with an existing visitor who previously clicked another affiliate link. This exposes whether your attribution precedence rule is implemented consistently and whether a clean landing page unintentionally overwrites an earlier referral.
SEO and privacy checks
Use normal crawlable destination pages and consistent canonical signals. Avoid indexable duplicate affiliate URLs with thin or misleading content. Do not force referral cookies before consent where local rules or your consent design require permission. Analytics source/medium is not a substitute for a validated commission ledger.
Frequently asked questions
Does a 301 pass all query parameters automatically?
Not necessarily. The redirect implementation decides what is carried forward. Inspect the actual Location header and the destination URL.
Can a link work but the affiliate still receive no commission?
Yes. A successful page load only confirms navigation. Attribution, customer mapping, eligible payment and approval are separate events.
Sources and editorial note
Reviewed 5 November 2026 using Google Search Central, Rewardful cross-domain documentation and Rewardful direct page tracking. The examples are illustrative, not results from independent testing. Editorial policy.
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