ASA rules Optival breached guidance after search ad shown to self-excluding user
Regulator found insufficient controls after an ad ran on 10 August 2026

Key Takeaways
- The ASA ruled against Optival Ltd for an ad shown on 10 August 2026 after a search for "self-exclusion bookies".
- The ad promoted a "Top 15 Betting Sites UK" list with offers such as "Exclusive First Bet Bonus" and references to 2025 welcome bonuses.
- The ASA ordered Optival to stop the ad appearing for self-exclusion queries and to strengthen search-ad targeting and exclusion controls.
- By end-2025 GamStop registrations exceeded 600,000 and the Gambling Commission fined Holland Park Leisure Limited £150,000 in August 2026 for non-participation in the mandatory self-exclusion scheme.
- The ASA stressed CAP Code social responsibility obligations apply to affiliates and marketers who steer users to gambling brands.
On 28 October 2026 the Advertising Standards Authority (ASA) ruled that Optival Ltd, operator of the Best Bookies and Betting Sites websites, displayed a gambling-related search ad to a user who was searching for self-exclusion information. The ad ran on 10 August 2026 after a search for "self-exclusion bookies", a phrase the ASA said indicated vulnerability to gambling harm.
What happened
The ASA examined a paid ad promoting a "Top 15 Betting Sites UK" list and references to "Exclusive First Bet Bonus" and "Best Welcome Bonus Offers by UK's Top Online Sports Betting Brands for 2025". Although Optival operates as an affiliate and comparison site, the regulator concluded the creative directed users to online gambling services and therefore amounted to a gambling promotion.
The regulator said the search term "self-exclusion bookies" clearly suggested the individual was seeking information to stop or restrict gambling, and that the ad’s appearance posed a "significant risk" of exposing potentially vulnerable consumers to promotional gambling content.
Optival’s defence and the ASA’s response
Optival said it had not intentionally targeted the keyword. The company supplied Google Ads reports which it said showed "self-exclusion bookies" was not among its target keywords and that it maintained negative keyword lists to prevent its ads appearing alongside searches related to self-exclusion, GamStop and other problem-gambling terms.
"The term was not among our target keywords and we believe Google’s automated matching technology triggered the ad," Optival told the ASA.
Optival described the incident as isolated and said it was expanding its exclusion measures to minimise future cases. Nevertheless, the ASA found the safeguards in place at the time of the incident were insufficient and determined there was a "real prospect" that vulnerable consumers had been inadvertently exposed to gambling promotions.
Remedies ordered
The ASA ordered Optival Ltd to prevent the ad from being shown again in response to searches for "self-exclusion bookies" or similar self-exclusion-related terms. It also required the company to strengthen its targeting controls for gambling-related search ads.
The ruling applies to the creative and to campaign settings that direct users to operators via listings and affiliate links; it is specifically relevant to affiliate practices in the sector and will affect [affiliate marketing and comparison sites](/b2b).
Regulatory context in the UK
The ruling comes as self-exclusion tools continue to see rising use. By the end of 2025 total registrations to GamStop had exceeded 600,000. In addition, the Gambling Commission has stepped up its focus on self-exclusion compliance: in August 2026 the Gambling Commission fined Holland Park Leisure Limited, an operator of adult gaming centres, £150,000 for failing to participate in the mandatory self-exclusion scheme.
The ASA emphasised that the social responsibility obligations in the CAP Code apply to companies that market products and services related to gambling, not just to betting operators. The ruling reminds marketers that channels which steer consumers to gambling brands must implement controls to protect at-risk audiences; see the CAP Code and related guidance on [regulation](/regulation).
Practical consequences
The resolution obliges Optival to review and tighten its exclusion lists and campaign configurations on search platforms to avoid query matches that indicate an intention to self-exclude. The ASA did not impose a monetary fine in this decision, but ordered the ad removed and required improved controls to prevent a recurrence.
Author: Emilio Navarro, trade technology correspondent.
Frequently Asked Questions
Why did the ASA rule against Optival Ltd?
The ASA found that a paid Optival ad appeared after a search for "self-exclusion bookies" on 10 August 2026, which exposed a potentially vulnerable consumer to gambling promotions. The regulator judged Optival’s safeguards at the time were insufficient to prevent that exposure.
What did the ASA require Optival to do after the investigation?
The ASA ordered Optival to prevent the ad from appearing for searches including "self-exclusion bookies" or similar terms and to strengthen its targeting and exclusion controls for gambling-related search advertising.
What was Optival’s defence to the ASA about the ad activation?
Optival said "self-exclusion bookies" was not among its target keywords and attributed the ad activation to Google’s automated matching technology; it also said it maintained negative keyword lists and would expand exclusion measures.
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About the author

Emilio Navarro
Industry Technology Correspondent
Emilio Navarro covers the cross-cutting technology and business of iGaming — platforms, data and AI, compliance tooling, affiliate marketing, financial results, and the stories that fit no single rubric. The reports open with the announcement, cite vendors and figures exactly as published, and keep a healthy distance from press-release language. When a supplier unveils a new engine or the advertising rulebook changes, Emilio Navarro reports what genuinely changes.
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