A major review of licensed UK gambling websites has put cookie consent, online tracking and user choice firmly in the spotlight. Research connected with Swansea University found that many gambling platforms used consent-banner designs that could steer visitors towards accepting tracking rather than supporting a clear, balanced decision.
The findings create an important opportunity for gambling operators, technology providers and regulators. By improving consent experiences, preventing unnecessary data sharing before permission is obtained and making privacy choices easier to understand, the industry can build stronger digital trust while giving customers more meaningful control.
For users, the message is equally constructive: cookie banners are not simply a routine pop-up to dismiss. They can affect how browsing behaviour, session activity and marketing preferences are collected and used across a gambling service.
Key findings from the Swansea University research
The research combined an audit of 624 licensed UK gambling websites with an experiment involving 615 participants. The study examined how gambling sites presented cookie choices and whether the design of those choices affected user behaviour.
Its headline findings were significant:
- 86% of reviewed cookie banners included at least one dark pattern.
- 24% of websites gave users no option to reject tracking through the banner.
- 67% processed personally identifiable data before consent had been obtained.
- Only 14% of the reviewed sites met all of the assessed GDPR-related requirements.
The participant experiment added an important practical dimension. People exposed to commonly used manipulative designs were more likely to accept tracking, including in circumstances where that outcome did not align with the privacy preferences they had previously expressed.
That result matters because it shows that consent design can shape behaviour. A banner may technically offer a choice, but the choice may not be equally visible, equally simple or equally easy to make.
What is a cookie-consent dark pattern?
A dark pattern is an interface design choice that nudges, pressures or steers people towards an action that benefits the service provider. In cookie banners, this can make accepting all tracking feel fast and effortless while turning rejection into a less obvious or more time-consuming process.
Common examples can include:
- A large, colourful “Accept All” button paired with a small or low-contrast rejection option.
- No visible option to reject non-essential cookies on the first screen.
- Multiple extra steps required to decline analytics or advertising cookies.
- Language that frames tracking as necessary when it is not required for the service to function.
- Pre-selected settings for non-essential marketing or analytics technologies.
- Confusing labels that make it difficult to distinguish essential cookies from optional tracking.
Well-designed consent tools can do the opposite. They can make acceptance, rejection and settings choices straightforward, visually balanced and easy to revisit. This approach respects users while also giving operators a practical way to demonstrate responsible data governance.
Why privacy is particularly important in online gambling
All online services should handle personal data carefully. However, gambling websites can generate especially detailed behavioural information because users may repeatedly log in, browse products, review promotions, place bets, play games or use account-management tools.
Patterns such as visit frequency, session duration, movement between product categories and interaction with promotions can reveal meaningful information about an individual’s online behaviour. When combined with account details, device identifiers, advertising technology or third-party analytics tools, this information may contribute to highly detailed user profiles.
This is why transparent consent has value beyond legal compliance. It supports a better relationship between customers and gambling brands. Users are more likely to feel respected when they can clearly understand what is happening, choose the level of tracking they are comfortable with and change that choice without friction.
The visible and less visible sides of a gambling website
The visible side of a gambling website includes markets, slots casino games, promotions, payment tools, account controls and safer gambling features. The less visible side can include cookies, analytics platforms, advertising tags, consent-management tools and data-sharing processes.
Customers may engage directly with the first layer, but the second layer can influence how their activity is measured, analysed and used for marketing or service optimisation. The Swansea findings draw attention to the need for that underlying technology layer to operate in line with the user’s real choices.
