How bonus tracking works (and why offers fail to register)
Welcome bonuses sometimes don't appear — usually because attribution broke. Here's the mechanism, the common causes, and how to get it right first time.
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Why this matters
A frustratingly common story: someone reads about a welcome offer, signs up, deposits — and the bonus never lands. Support says the account wasn't eligible.
Usually nothing was rigged. The attribution simply broke: the operator's system never registered which offer or referrer the signup belonged to. Understanding the mechanism takes five minutes and saves a lot of annoyance, whichever site's link you use.
The mechanism, in plain terms
Three moving parts:
- The tracking link. The URL you click carries parameters identifying the referrer and, often, the specific campaign or offer.
- The cookie. On arrival, the operator stores a small marker in your browser recording where you came from, valid for a set window (commonly 30 days, sometimes much shorter).
- The attribution. When you complete registration, the operator reads that marker and assigns the account to the campaign — which is also what makes you eligible for the offer attached to it.
Some operators also use a bonus code typed at registration instead of, or on top of, the cookie. If a code is shown with an offer, it usually is the attribution.
The usual reasons it breaks
- Ad blockers and privacy extensions. Many block tracking parameters outright, so you land on the site with no attribution at all. This is the single most common cause.
- Cookie clearing or strict privacy modes. Clearing cookies, or a browser that purges third-party storage aggressively, wipes the marker.
- A long gap. Clicking today and registering three weeks later can fall outside the cookie window.
- Switching device or browser. Clicking on your phone and registering on your laptop generally loses attribution — the cookie lives on the first device.
- Private/incognito windows. Closing the window discards the session and its cookies.
- Registering through a different route. Landing via the link but then navigating away, or opening the operator's app instead, can drop the reference.
- Skipping the bonus code. Where a code is required, no code usually means no offer, however you arrived.
How to get it right first time
A short checklist that avoids nearly every failure case:
- Pause ad-blocking on the operator's site before clicking through.
- Click the offer link, then register in the same session — don't leave it for next week.
- Stay on the same device and browser from click to signup.
- Don't clear cookies between clicking and registering.
- Enter the bonus code if one is shown with the offer.
- Read the terms before depositing — minimum deposit, eligible payment methods and time limits all affect eligibility. Some offers exclude certain deposit methods, which catches out crypto users in particular.
- Check the bonus is showing in your account before you deposit, where the operator displays it.
If the bonus still doesn't appear
Start with the operator's support — they own the account and are the only ones who can apply a bonus. Have ready: the date and rough time you registered, the offer you expected, and any code you used.
If that stalls and you signed up through our link, tell us. We have a partner contact at the operators we list and we'll raise your case with them directly, which is usually faster than a generic support queue.
Be realistic about the outcome, though. Getting your case in front of the right person is not the same as overturning a decision: if a term genuinely wasn't met, the answer may still be no. We can escalate, not overrule.
And before you chase a bonus at all, it's worth checking whether it's worth chasing: our bonus wagering calculator shows the turnover a given offer really demands.
