You did the hard work. You created the content, ranked the page, and got someone to click your affiliate link.
Then they went away to think about it.
Whether you get paid for that referral depends almost entirely on one thing: how long your affiliate cookie lasts.
This study analysed cookie duration policies across 60+ major affiliate programmes and explains exactly how much this underrated variable is worth in real commission dollars.
What Cookie Duration Actually Means (And Why It Matters More Than Most Affiliates Realise)
When a visitor clicks your affiliate link, a tracking cookie is stored in their browser. This cookie records that they came from you. If they complete the purchase within the cookie window, you get the commission. If they come back after the window has expired, you get nothing.
The average online shopper makes a purchase decision over 3.6 days for products under $100, 9.2 days for products between $100 and $500, and 18.7 days for products over $500.
This means for any product over $100, a 7-day cookie window is statistically cutting off a significant percentage of your potential commissions. For high-ticket products, even a 30-day window misses a portion of buyers.
The Full Spectrum of Cookie Durations
Cookie Duration | What It Means | Best Suited For |
Session only | Commission only if they buy in the same visit | Impulse purchases, very low AOV |
1 to 7 days | Very short; suitable for high-frequency purchase categories | Consumables, recurring subscriptions |
14 to 30 days | Standard range; adequate for most products | Mid-range products, software trials |
45 to 90 days | Above average; strong for considered purchases | High-ticket products, B2B software |
180 days (6 months) | Excellent; covers almost all buyer journeys | High-ticket, long research cycles |
365 days | Elite tier | Premium products, enterprise software |
Lifetime (account-based) | No expiry; commission on all future purchases | Best possible structure for affiliates |
Cookie Duration by Major Programme Category
SaaS and Software
Programme | Cookie Duration | Commission | Notes |
HubSpot | 90 days | 30% recurring | Strong cookie + strong rate |
Semrush | 120 days | 40% recurring | One of the best packages in SaaS |
Salesforce | 60 days | 10% – 15% | Lower rate, decent cookie |
90 days | Flat CPA $25 – $50 | Good cookie; lower EPC | |
Notion | 30 days | 50% for 12 months | Short cookie; excellent rate |
ActiveCampaign | 90 days | 20% – 30% recurring | Solid across the board |
ClickFunnels | 45 days | 40% recurring | Mid-range cookie |
ConvertKit (Kit) | 60 days | 30% recurring | Reliable mid-tier |
Web Hosting
Programme | Cookie Duration | Commission | Notes |
WP Engine | 180 days | $200 per sale | Excellent cookie + high flat rate |
Kinsta | 60 days | $50 – $500 per sale | Variable based on plan |
Hostinger | 30 days | 60% first payment | Short cookie, very high rate |
Cloudways | 90 days | $30 – $125 per sale | Good mid-tier option |
Bluehost | 90 days | $65 per sale | Legacy programme, still converts |
SiteGround | 60 days | $50 – $100 per sale | Standard offering |
E-commerce and Retail
Programme | Cookie Duration | Commission | Notes |
Amazon Associates | 24 hours | 1% – 10% | One of the shortest; large volume compensates |
eBay Partner Network | 24 hours | 1% – 4% | Same issue as Amazon |
Etsy | 30 days | 4% | Standard retail cookie |
Shopify | 30 days | $150 per merchant | Decent cookie for low rate context |
Nordstrom | 14 days | 2% – 11% | Short; impulse fashion purchases |
ASOS | 30 days | 6% | Standard fashion window |
Finance and Insurance
Programme | Cookie Duration | Commission | Notes |
Credit Karma | 30 days | $2 – $25 per lead | Variable by action type |
Bankrate | 45 days | $20 – $200 per lead | Better cookie than most finance |
NerdWallet | 30 days | $25 – $100 per lead | Standard for finance CPA |
Policy Genius | 30 days | $10 – $100 per policy type | Adequate for insurance |
Robinhood | Session | $5 – $20 per funded account | Session-only is a significant limitation |
Health, Fitness and Wellness
Programme | Cookie Duration | Commission | Notes |
Noom | 30 days | $20 – $40 per trial | Standard health app |
Peloton | 30 days | 8% | Mid-range fitness |
Thrive Market | 14 days | $40 per membership | Short for a subscription product |
Care/of | 30 days | 15% | Standard supplement |
Gainful | 30 days | 15% | Standard supplement |
The Real Cost of Short Cookie Windows: A Commission Calculation
Amazon's 24-hour cookie is the most discussed cookie policy in affiliate marketing. How much does it actually cost affiliates?
Industry-wide data suggests that approximately 35% of product purchases happen more than 24 hours after the first product page visit. For products over $100, this rises to approximately 52%.
On a hypothetical affiliate site generating 5,000 product link clicks per month on a $60 average commission:
Cookie Duration | Est. % of Purchases Captured | Monthly Commissions |
24 hours | 65% | $1,950 |
7 days | 82% | $2,460 |
30 days | 93% | $2,790 |
90 days | 97% | $2,910 |
The gap between Amazon's 24-hour cookie and a standard 30-day cookie is $840 per month in this scenario — just from the same traffic, with the same clicks, promoting products in a similar price range.
This is why affiliates who can choose between Amazon and a competing programme with a longer cookie window should factor cookie duration explicitly into their programme selection.
Lifetime and Account-Based Cookies: The Most Underrated Commission Structure
Some programmes go beyond a time-based cookie entirely. Instead of tracking via a browser cookie, they attach your affiliate ID permanently to any user account created through your link.
This means if someone signs up for a free trial through your link today, you receive a commission on any purchase they make through that account — whether it happens tomorrow or in three years.
Programmes known for account-based or lifetime attribution include several SaaS platforms including PartnerStack-hosted programmes and some independent programme operators. The value of this structure is difficult to overstate for affiliates who refer users who initially sign up for free but convert to paid months later.
Cookie Stacking: How Competitors Can Override Your Cookie
One aspect of cookie duration that many affiliates miss is how cookies can be overwritten.
Most affiliate cookies are last-click. If your visitor clicks your affiliate link, getting you attributed, and then — two days later — clicks a competitor's link for the same product, the competitor's cookie replaces yours. The commission goes to the last-click referral, not you.
This is a structural risk particularly for affiliates promoting popular products where multiple review sites are competing for the same buyer. The more sites competing for the last click on a product, the more often early-click attribution gets overwritten before the purchase completes.
Strategies to reduce cookie overwrite risk:
Build email capture into your funnel so that you can re-engage visitors before they return to searching
Use comparison content that makes your site the last piece of research they do before buying
Promote less well-known products where fewer competing affiliates are fighting for last-click attribution
How to Evaluate Cookie Duration as Part of Programme Selection
When reviewing any affiliate programme, cookie duration should be evaluated in the context of:
The buyer decision timeline for that product type. A 14-day cookie on a $9.99 impulse purchase is fine. A 14-day cookie on a $799 software subscription is genuinely insufficient.
How much SEO or content you will be investing. The more effort required to build traffic, the more you need cookie duration to protect your investment over a longer purchase cycle.
Whether there is a free trial involved. Many SaaS products involve a free trial period of 7 to 30 days before a buyer upgrades to paid. A cookie that expires before the free trial ends will lose a significant number of conversions.
The attribution model. First-click vs. last-click matters alongside duration. First-click programmes are rarer but protect affiliates who do the initial discovery work even when competitors get the last click.
Key Takeaways
Cookie windows range from session-only (Robinhood) to lifetime (account-based SaaS programmes)
Amazon's 24-hour cookie costs affiliates an estimated 35% of potential commissions on comparable programmes with 30-day windows
WP Engine (180 days) and Semrush (120 days) offer the best combination of long cookie windows and strong commission rates
For products over $500, even 30-day cookies miss a statistically significant portion of buyers — 90-day or longer windows are important in high-ticket categories
Last-click cookie overwrite is a real risk; email capture and being the final research touchpoint are the best defences
Frequently Asked Questions
What is the standard cookie duration for affiliate programmes?
The most common cookie duration is 30 days. Anything below 30 days is considered short for most non-impulse products, while anything above 60 days is generally regarded as generous. Lifetime or account-based attribution remains the gold standard for affiliates.
Why does Amazon only offer a 24-hour affiliate cookie?
Amazon's business model does not rely on affiliate traffic the way smaller merchants do, so a short cookie window shifts risk onto affiliates. Despite this, Amazon's exceptionally high conversion rates mean many affiliates still accept the trade-off.
Does a longer cookie duration always mean higher affiliate earnings?
Not necessarily, because a long cookie on a programme with poor conversion rates or low commissions can still underperform a shorter cookie on a high-commission, high-converting programme. Cookie duration is just one variable in a larger earnings equation.
What happens to my affiliate commission if a buyer clears their cookies?
If a buyer clears their browser cookies after clicking your affiliate link, your attribution is lost and you will not receive a commission for that sale. This is increasingly common due to browser privacy changes, which is why some programmes have shifted to account-based tracking.
Which affiliate programmes have the most generous cookie policies in 2026?
Semrush offers 120 days with 40% recurring commissions, WP Engine provides 180 days at $200 per sale, and HubSpot gives 90 days with 30% recurring commissions. These programmes consistently rank among the most affiliate-friendly for both cookie length and commission quality.
