A major study of licensed UK gambling websites has brought renewed attention to the way online betting and casino platforms request permission to use cookies and process personal information. The research, conducted by Swansea University researchers, points to widespread weaknesses in consent design while also creating a clear opportunity for operators, regulators and technology providers to build a more transparent digital gambling environment.
The central message is constructive and important: privacy can be made easier to understand, easier to control and more trustworthy for every user. When people can make a genuine, informed choice about tracking, gambling businesses have a stronger foundation for customer confidence, responsible data practices and sustainable digital relationships.
What the Swansea University research found
The research combined an audit of 624 licensed UK gambling websites with an experiment involving 615 participants. It examined whether cookie-consent interfaces gave users meaningful control over non-essential tracking, including analytics and advertising technologies that may collect information about how someone uses a website.
The findings show that problematic consent practices were common across the websites assessed:
- 86% of cookie banners used at least one dark pattern.
- 24% of websites did not provide an option to reject tracking.
- 67% of websites processed personally identifiable information before consent was obtained.
- 14% of websites met all assessed GDPR requirements in the study.
These results matter because consent is not simply a box-ticking exercise. A banner’s wording, colour, button placement and number of steps can influence whether a person feels able to accept or decline tracking. The study indicates that many existing designs may make acceptance noticeably easier than refusal.
Why cookie consent design has a real impact
Cookie banners are often the first privacy decision a visitor makes on a website. Although they can appear minor, they determine whether data from advertising, analytics or other non-essential tools can begin to flow. A clear, balanced consent experience helps users understand that decision and exercise control without unnecessary friction.
In the Swansea University experiment, participants were more likely to accept tracking when the “accept all” option was visually prominent. This effect appeared even where acceptance did not align with the privacy preferences participants had previously expressed.
That finding demonstrates why interface design deserves close attention. A decision may look voluntary on the surface while being strongly shaped by the way options are presented. For businesses, designing for genuine choice is a positive way to demonstrate respect for customers rather than relying on nudges that could undermine trust.
What is a dark pattern?
A dark pattern is a user-interface design choice that steers people toward an outcome that may not reflect their freely expressed preference. In cookie banners, examples can include making the acceptance button large and brightly coloured while placing rejection controls in less noticeable text, hiding a decline option behind several screens, or using confusing language that makes the consequences of a choice difficult to understand.
Not every persuasive design feature is necessarily unlawful in every context. However, where a website seeks consent for non-essential tracking, users should be able to make a clear and meaningful choice. The research suggests that many gambling websites could improve substantially by making acceptance and rejection options equally visible, equally simple and equally understandable.
Why privacy is especially significant in online gambling
Data collected through online gambling websites can reveal detailed patterns of behaviour. Depending on the tools in use, digital activity may show when someone visits a platform, how frequently they return, which online casino slots they view, how they respond to promotions and how they move through an account journey.
This is different from a simple record of a single purchase. Over time, behavioural data can help create a rich profile of an individual’s interests, habits and engagement with gambling products. That is why clear permission controls are especially valuable in this sector.
A privacy-first approach can benefit users in several practical ways:
- It gives people a clearer understanding of what information is collected.
- It separates necessary website functions from optional advertising and analytics activity.
- It reduces the likelihood that users agree to tracking simply because refusal is difficult to find.
- It encourages more accountable use of third-party technology providers.
- It supports trust in a sector where responsible practices are particularly important.
For operators, transparent consent can also be a commercial strength. A customer who feels informed and respected is more likely to view the platform as credible and professionally managed. Strong privacy practices can therefore complement wider commitments to customer care, governance and responsible gambling.
The difference between necessary and non-essential cookies
Cookies and similar technologies can serve different purposes. Some are necessary to provide core functions that a user expects, such as maintaining a secure session, remembering a login state or helping protect an account against fraud. Other technologies support optional activities, such as measuring site usage, personalising advertising or sharing data with marketing partners.
| Technology purpose | Typical role | Why user choice matters |
|---|---|---|
| Strictly necessary functions | Security, login sessions, account functionality and technical operation | These functions may be needed to deliver the service safely and reliably. |
| Analytics | Understanding visits, navigation and product interactions | Analytics can be useful, but users should understand when their behaviour is being measured through non-essential tools. |
| Advertising and marketing | Campaign measurement, audience building and personalised promotions | These tools can affect how personal data is used and shared, making clear consent particularly important. |
| Third-party tracking | Data collection by external analytics, advertising or technology providers | Users benefit from knowing when other organisations may receive information about their activity. |
The key issue raised by the research is not that all cookies are inherently problematic. Rather, it is whether non-essential tracking begins only after a person has had a meaningful opportunity to decide. The study’s finding that 67% of audited sites processed personally identifiable information before consent highlights why robust technical controls are needed alongside better banner design.
What meaningful consent should look like
Meaningful consent is easier to achieve when privacy choices are designed around clarity and fairness. Users should not have to search through multiple layers of menus or decode vague language to understand what they are agreeing to.
A stronger consent experience can include the following elements:
- Equal visibility: Present “accept” and “reject” options with comparable prominence.
- Simple language: Explain tracking purposes in plain English rather than relying on dense legal terminology.
- Easy refusal: Allow users to decline non-essential cookies without navigating a long sequence of screens.
- Granular choices: Let visitors make separate decisions about categories such as analytics and marketing where appropriate.
- Consent before collection: Block non-essential tags, pixels and scripts until the relevant permission has been given.
- Easy changes later: Make it straightforward for users to revisit and update their privacy choices.
- Clear accountability: Maintain records and governance processes that show how consent systems are reviewed and managed.
These measures can transform the consent banner from an obstacle into a useful customer experience feature. Rather than pressuring visitors into a fast decision, a well-designed notice communicates that the business values autonomy and handles data carefully.
Why stronger standards can improve the sector
The researchers and the Information Commissioner’s Office have called attention to the need for clearer standards, genuine user choice and stronger enforcement. That focus can produce positive outcomes for consumers and for the wider gambling industry.
Clearer expectations would help responsible operators understand what good practice looks like in operational terms. Instead of treating compliance as an abstract legal objective, businesses could apply consistent rules to consent banners, tag management systems, third-party contracts and internal testing processes.
More consistent standards could also make it easier for consumers to recognise fair treatment. If rejection is as easy as acceptance, and if optional data collection remains off until a person has chosen otherwise, users can make privacy decisions with greater confidence.
Good privacy design does more than meet a regulatory expectation. It gives people understandable choices and helps businesses earn trust through everyday digital interactions.
Practical steps gambling operators can take now
The Swansea University findings provide a practical roadmap for improvement. Gambling operators do not need to wait for further enforcement action to strengthen privacy controls. Reviewing the consent journey now can reduce risk while improving the experience for customers.
1. Audit every tracking technology
Operators should identify all cookies, scripts, tags, pixels and software development tools that run across their websites and apps. This includes technologies added through advertising platforms, analytics providers, affiliate arrangements, customer experience tools and embedded content.
A complete inventory helps teams distinguish essential functions from optional tracking. It also makes it easier to identify whether a third-party tool is sending personal information before consent has been captured.
2. Test banners for symmetry and clarity
Consent interfaces should be tested from the perspective of a first-time visitor. Can a person reject non-essential tracking as easily as they can accept it? Are the buttons similarly visible? Does the wording clearly explain the available choices?
Testing should include desktop and mobile experiences. A banner that appears balanced on a large screen may become difficult to use on a mobile device, where key controls can be hidden, compressed or pushed below the visible area.
3. Put technical controls behind the promise
Clear wording alone is not enough. If a banner states that optional cookies will wait for permission, the underlying technology must enforce that promise. Consent management systems, tag managers and marketing integrations should be configured so that non-essential processing does not start prematurely.
This is particularly important where multiple vendors are involved. A website can have a well-written consent notice while still exposing data through tags that load automatically in the background. Technical validation is therefore essential.
4. Review third-party relationships
Advertising and analytics providers can play a major role in how data is collected and shared. Operators can strengthen governance by reviewing which partners receive data, what information they receive, why it is needed and whether the relevant processing begins only after valid consent.
Supplier reviews can also encourage better documentation, more precise data controls and a clearer understanding of how marketing technology works across the customer journey.
5. Make privacy part of responsible gambling governance
Privacy and responsible gambling are often managed through separate programmes, but they share an important principle: treating customers fairly. Bringing privacy teams, product designers, compliance professionals, marketing teams and responsible gambling specialists into the same conversation can lead to better decisions.
For example, a promotion system may be technically effective while still raising questions about tracking, profiling or the fairness of a consent journey. Cross-functional oversight can identify these issues earlier and support more customer-centred outcomes.
What users can do to take more control
While businesses and regulators carry the main responsibility for fair consent systems, users can also take practical steps to understand and manage their preferences online.
- Look for settings that allow non-essential cookies to be rejected or customised.
- Review privacy controls after creating an account, not only when first visiting a website.
- Check whether a platform explains the difference between essential, analytics and marketing technologies.
- Use browser privacy settings where appropriate to limit certain forms of tracking.
- Revisit choices if a website makes it easy to update consent later.
These actions do not remove the obligation on operators to provide fair choices. They can, however, help users engage more actively with the information and controls available to them.
A better digital future for gambling privacy
The Swansea University audit offers a valuable reminder that consent design has consequences. When 86% of assessed banners include at least one dark pattern and only 14% meet all assessed GDPR requirements, there is a clear need for improvement. At the same time, the path forward is straightforward: make choices balanced, make information clear and ensure that non-essential tracking does not start before permission is granted.
For gambling operators, stronger privacy practices can deliver more than regulatory alignment. They can support customer confidence, reduce uncertainty around data use and distinguish businesses that take digital responsibility seriously. For users, they can provide a more honest and controllable online experience.
The most effective cookie banner is not the one that secures the fastest possible acceptance. It is the one that enables a person to make an informed decision without pressure. By adopting that principle across design, technology and governance, the UK gambling sector can turn an identified weakness into a meaningful opportunity for trust and improvement.
