The cookie window is one of the most overlooked numbers in affiliate marketing, and it quietly decides whether you get paid for sales you genuinely created. Here is what it is, what counts as good, and when it matters most.
What a cookie window actually is
When someone clicks your affiliate link, the program stores a small file, the cookie, that credits you if they buy. The cookie window is how long that credit lasts. With a 30-day cookie, you earn commission if the person buys within 30 days of clicking. After that, the credit expires.
Short, standard, and generous windows
| Window | Rating | What it means for you |
|---|---|---|
| 24 hours to 7 days | Short | You only get credit for near-immediate buyers |
| 30 days | Standard | The common baseline, fine for most products |
| 60 to 90 days | Generous | Captures readers who take time to decide |
| 120 days or more | Excellent | Ideal for considered, higher-priced purchases |
When the cookie window matters most
- High-ticket products, where buyers deliberate. See high-ticket affiliate programs.
- Considered B2B purchases, which often involve multiple people and approvals.
- Content that ranks in search, where readers may return days later to buy.
For low-cost impulse products, a standard 30-day window is usually plenty.
How to factor it into your choices
Weigh cookie window alongside commission and fit, not on its own. A generous window on a poorly converting product still earns little. Use the full method in how to choose an affiliate program, and compare cookie windows directly in the AffiliateFinderPro directory.
Commission rates, cookie windows, and program terms in this guide reflect publicly available information at the time of writing and can change. Always confirm the current terms on each program's official affiliate page before you apply.