Definition
Cookie consent is the mechanism by which a website obtains a user's permission before placing non-essential cookies and similar tracking technologies on their device. Under EU rules (the ePrivacy Directive alongside GDPR) and equivalents elsewhere, only cookies strictly necessary to deliver a service the user asked for can be set without consent; everything else — analytics, advertising, personalisation, affiliate tracking, social pixels — requires a prior, informed, affirmative opt-in.
Valid consent has specific requirements: it must be given before the cookies fire, presented with a genuine choice (reject must be as easy as accept), granular by purpose rather than all-or-nothing, and recorded so it can be proven later. "By continuing to browse you accept" banners, pre-ticked boxes, and designs that make rejecting harder than accepting do not meet the standard and are a frequent enforcement target.
In context
For iGaming operators and affiliates, cookie consent directly affects measurement and monetisation, which creates a temptation to design non-compliant banners. Affiliate tracking cookies, advertising pixels and analytics tags are all non-essential and must wait for opt-in; firing them on page load — still common on affiliate sites — is a clear breach.
When a user rejects, the site must genuinely not set those cookies and must fall back to privacy-preserving or server-side measurement rather than quietly tracking anyway.
The practical setup is a consent management platform that blocks tagged scripts until the user chooses, passes the consent state to tag managers and tracking tools, re-prompts when purposes change, and logs each decision with a timestamp and the banner version shown. Consent also needs to propagate: if an operator relies on an affiliate's consent for downstream processing, that chain has to be real.
Regulators across several gambling markets have fined operators specifically for cookie-consent failures, and browser and platform changes (third-party cookie deprecation, tracking prevention) are reducing what non-consented tracking can technically achieve anyway — so the durable approach is honest consent plus first-party and aggregate measurement, not banner tricks.
Worked example
An operator's cookie banner sets analytics and affiliate cookies immediately and hides "Reject" behind a second screen. After a regulator warning it deploys a consent platform: nothing non-essential fires until the user acts, accept and reject are equal buttons, choices are logged, and rejected sessions fall back to consentless aggregate analytics.
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