A Swansea University study has brought fresh attention to privacy practices across the UK online gambling sector. The research examined 624 licensed gambling websites and found that cookie-consent design and tracking practices frequently fell short of the standards expected under UK data-protection law.
The findings matter because gambling websites can collect information that goes far beyond a simple record of a page visit. Data about visits, time spent on a service, product choices, account activity and engagement with promotions may help create detailed profiles of a person’s gambling behaviour. When people are offered clear, balanced and meaningful privacy choices, they are better equipped to decide how that information is used.
The study also presents an opportunity for positive change. Gambling operators that improve consent journeys, minimise unnecessary tracking and communicate openly about data use can strengthen consumer trust while creating a more responsible digital experience.
Key findings from the website audit
Researchers associated with Swansea University’s Gambling Research, Education and Treatment Centre assessed 624 licensed UK gambling websites. Their audit focused on cookie banners, consent mechanisms and data-processing behaviour related to tracking technologies.
The results indicated that privacy weaknesses were widespread:
- 86% of cookie-consent banners included at least one dark pattern.
- 24% of websites gave users no option to reject tracking through the consent interface assessed.
- 67% processed personally identifiable information before users had provided consent.
- Only 14% met all GDPR requirements assessed by the researchers.
These figures suggest that consent is often treated as a design obstacle to overcome rather than as a meaningful choice that users should be able to make freely. The strongest path forward is to make privacy controls clear, accessible and equally easy to use for every visitor.
What dark patterns mean in a cookie banner
A dark pattern is an interface choice that steers a person toward a decision that may not reflect their actual preference. In the context of cookie banners, this can involve making the “accept all” option highly visible while placing rejection options behind additional screens, using vague wording or making refusal more time-consuming than acceptance.
Not every visually prominent button is automatically unlawful or misleading. However, a consent process becomes difficult to defend when the design materially pushes people toward accepting non-essential tracking without providing an equally straightforward alternative.
Examples of design choices that can undermine genuine consent include:
- A large, bright “accept all” button combined with a small or low-contrast rejection option.
- No visible “reject all” choice on the first layer of the banner.
- Multiple screens required to decline analytics or advertising cookies.
- Pre-selected options for non-essential cookies.
- Language that frames acceptance as necessary when it is not required for the site’s core functionality.
- Confusing category labels that make it difficult to understand what tracking will occur.
By contrast, a well-designed privacy notice helps users quickly understand their options. It gives acceptance and rejection comparable visibility, uses plain language and allows people to change their preferences without friction.
The experiment showed that design can influence consent
Alongside the website audit, the Swansea research included an experiment involving 615 participants. The experiment found that visually prioritising “accept all” increased the likelihood that people would agree to tracking.
Importantly, the effect was not merely about convenience. Participants shown the most common banner style identified in the audit were more likely to accept tracking even where that outcome did not align with their stated privacy preferences. This supports the wider concern that consent-banner design can influence decisions in ways users may not fully recognise at the moment they click.
For businesses, this creates a clear incentive to move beyond compliance checkboxes. A consent experience that respects user preferences can become a practical signal of transparency, customer care and responsible digital governance.
Why gambling data deserves particular care
Many websites use analytics and advertising tools, but gambling platforms have a heightened responsibility because behavioural data can be especially revealing. A person’s activity may indicate how frequently they gamble, when they engage with products, how they respond to promotions and how they move between sports betting, slots online, casino games and other services.
That does not mean all data collection is inappropriate. Some cookies and similar technologies are necessary for essential functions such as account security, fraud prevention, load balancing and remembering user settings. The key distinction is between essential processing and non-essential tracking used for purposes such as analytics, advertising, cross-site profiling or personalised marketing.
When non-essential tracking is involved, people should be able to make an informed choice before their personal data is processed for those purposes. This is particularly important where third parties may receive data through advertising technology or analytics services.
Potentially sensitive forms of gambling-related insight
Depending on the information collected and how it is combined, gambling-site activity can contribute to profiles containing insights such as:
- Frequency and timing of visits.
- Interaction with specific games, sports markets or promotional offers.
- Time spent browsing or using different sections of a platform.
- Responses to advertising and personalised messaging.
- Patterns that may be used to segment users for marketing or analytics purposes.
Responsible operators can reduce risks by collecting only what they genuinely need, setting appropriate retention periods, reviewing third-party tools and ensuring that non-essential technologies do not activate before valid consent is obtained.
Understanding the GDPR concern
The General Data Protection Regulation, retained in UK law alongside the UK data-protection framework, sets expectations for lawful, fair and transparent processing of personal data. In many cookie and tracking contexts, non-essential technologies require prior consent that is freely given, specific, informed and unambiguous.
The study’s finding that 67% of audited websites processed personally identifiable information before consent raises an important compliance question. If non-essential advertising or analytics technologies begin collecting or sharing personal data before a visitor has made a choice, the process may not meet the standard of prior, meaningful consent.
A strong privacy programme should not rely solely on a banner’s wording. It should also examine what happens in the background when a page loads, including scripts, tags, pixels, cookies, device identifiers and third-party requests.
What better consent design looks like
Improving privacy does not have to create a poor user experience. In fact, clearer choices can make a website feel more trustworthy and easier to navigate. Operators can build a better consent journey by treating it as part of the customer experience rather than a legal notice placed in the way of a visitor.
| Consent design principle | What it looks like in practice | Potential benefit |
|---|---|---|
| Equal choice | Show “accept all” and “reject all” with comparable prominence on the first layer. | Supports a freely made decision. |
| Plain language | Explain cookie categories without legal jargon or vague labels. | Helps users understand what they are choosing. |
| Prior consent | Prevent non-essential analytics and advertising tools from loading until consent is recorded. | Reduces the risk of pre-consent data processing. |
| Granular controls | Allow users to opt into categories such as analytics or marketing separately. | Gives users meaningful control. |
| Easy withdrawal | Make privacy settings easy to find and update after the first visit. | Respects changing preferences over time. |
| Clear accountability | Maintain records of consent, vendors, purposes and technical controls. | Supports governance and audit readiness. |
A practical action plan for gambling operators
The Swansea findings offer a useful roadmap for operators that want to improve customer confidence and reduce privacy risk. The most effective approach combines legal review, technical testing, product design and ongoing governance.
- Map every tracking technology. Identify cookies, pixels, tags, software development kits and third-party requests across desktop and mobile experiences.
- Classify each technology by purpose. Separate strictly necessary functions from analytics, advertising, personalisation and other non-essential uses.
- Test pre-consent activity. Review network requests and browser storage before a user accepts any optional category.
- Redesign the first layer of the banner. Provide equally accessible acceptance and rejection choices without deceptive visual hierarchy.
- Review third-party arrangements. Confirm what information vendors receive, why they receive it and whether the relationship is properly documented.
- Use understandable explanations. Tell users what each category does and how it affects their experience.
- Make preference changes simple. Include a persistent and easy-to-find privacy settings link or control.
- Monitor continuously. Website updates, new marketing tags and platform changes can introduce tracking issues after an initial audit.
These steps can help operators create a more reliable framework for privacy and responsible gambling. They can also reduce the risk that a website’s visible consent language differs from its underlying technical behaviour.
Benefits of privacy-first gambling website design
Better consent practices are not simply about avoiding enforcement action. They can support stronger customer relationships and more sustainable digital operations.
More informed customer choices
Users benefit when they can distinguish necessary website functions from optional advertising and analytics activity. Clear information enables people to choose the level of tracking that is right for them.
Greater trust and credibility
Privacy is increasingly part of brand reputation. A gambling operator that makes refusal as easy as acceptance sends a powerful message that it values customer autonomy rather than relying on friction or confusion.
Improved governance
A detailed review of cookies and third-party technologies can reveal duplicate scripts, unnecessary data flows and outdated marketing tools. Streamlining these systems can improve operational oversight as well as privacy compliance.
Stronger alignment with responsible gambling goals
Responsible gambling is closely connected to treating customers fairly. Transparent data practices can complement wider efforts to protect users, communicate responsibly and avoid exploiting behavioural vulnerabilities.
The role of the Information Commissioner’s Office
The Information Commissioner’s Office, the UK’s data-protection regulator, has previously taken action involving gambling operators and advertising cookies where personal data was processed before people had a chance to accept or reject tracking. The Swansea study suggests that the issue may extend across a broader share of the licensed market.
Researchers have called for stronger enforcement and clearer standards around consent-banner design. Greater regulatory attention could encourage consistent improvements, especially where businesses have relied on complex consent flows or automated third-party tools that are difficult for users to understand.
Effective enforcement can benefit responsible operators as well as consumers. It helps create a more level playing field by ensuring that businesses competing for attention do not gain an advantage through manipulative design or premature data collection.
What users can do to protect their privacy
While website operators carry the main responsibility for lawful tracking practices, users can take a few practical steps to make more informed choices online:
- Look for a visible option to reject non-essential cookies before selecting “accept all.”
- Open privacy settings to review analytics, advertising and personalisation categories.
- Be cautious if rejecting tracking requires several more steps than accepting it.
- Review account privacy controls and marketing preferences where available.
- Use browser tools that allow cookie management or tracking protection, while recognising that these tools do not replace a website’s legal obligations.
- Consider whether a platform explains its data practices in clear, specific language.
These actions cannot solve every problem, particularly where tracking occurs before a consent choice is displayed. However, they can help users identify services that provide more transparent and respectful controls.
A chance to raise the standard across the sector
The Swansea University research shows that cookie banners are not a minor website detail. Their design can influence whether people accept tracking, while the technologies behind them can determine whether personal information is shared before a meaningful choice has been made.
With 86% of audited sites found to use at least one dark pattern, 24% offering no rejection option and only 14% meeting all assessed GDPR requirements, the case for improvement is clear. The opportunity is equally clear: gambling operators can build better digital experiences by offering fair choices, limiting unnecessary data collection and putting privacy controls at the centre of product design.
For customers, this can mean greater transparency and control. For responsible businesses, it can mean stronger trust, better governance and a more sustainable relationship with the people who use their services. Meaningful consent is not just a regulatory requirement; it is a foundation for a more accountable online gambling environment.
