The UK advertising watchdog has sided with a complainant over a betting affiliate's paid search listing that surfaced on a query about self-exclusion.

The Advertising Standards Authority published its ruling on 28 October 2026, finding the ad had not been responsibly targeted and had broken the CAP Code's social responsibility rule. Anyone buying search traffic for betting brands should take note.

The company at the centre of the case is Optival Ltd, which trades as bestbookiesandbettingsites.co.uk.

The ad and the complaint

A user searching for the phrase self exclusion bookies on 10 August was shown the paid result. The listing carried the headline Top 15 Betting Sites UK, urged people to compare bookmakers and dangled an exclusive first bet bonus plus welcome offers from leading UK online sportsbooks. The complainant questioned whether it had been targeted irresponsibly.

Optival denied ever bidding on the phrase. Once the complaint landed, it went through search term reports for every campaign and turned up no record of queries containing self exclusion, backing this up with a screenshot. The firm also said it keeps dedicated negative keyword lists built to block searches tied to self-exclusion, GamStop and problem gambling.

In Optival's account, the listing probably came from the platform's automated query matching rather than keywords it had picked. The absence of the term from its reports, it argued, pointed to a one-off that fell below the platform's reporting thresholds. It pledged to widen its negative keyword exclusions across existing and future campaigns.

How the ASA saw it

In the regulator's view, someone typing self exclusion bookies is most likely after information, advice and support on cutting back their exposure to gambling. That group is likely to include vulnerable people actively trying to see fewer gambling ads, the ASA said, and a promotion for the best welcome bonuses had no business appearing against that search.

The regulator acknowledged that the site is an affiliate comparison service, not a gambling operator. Even so, it said, the ad still amounted to promoting online betting sites and bookmakers. The Code demands that gambling ads pay particular attention to shielding vulnerable people from harm or exploitation, the ASA noted, and given the potential for serious harm, marketers ought to have extremely strong controls in place to stop inappropriate targeting.

The ASA welcomed Optival's promise to broaden its exclusions, but said solid safeguards should have been running already. With a strong likelihood that vulnerable consumers looking to self-exclude had been shown an ad for betting sites, the regulator concluded the targeting was irresponsible and breached rule 1.3 on social responsibility in CAP Code (Edition 12).

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What happens next

The ad must not run again against the search self exclusion bookies, and the ASA has instructed Optival to make sure its search ads are responsibly targeted.

Outcomes, not intentions, decided this case. Optival had negative keyword lists in place and blamed automated query expansion for the match. The ASA still found its targeting controls were not robust enough on the day the ad appeared.

The lesson for affiliates and operators is the same: audit search term reports on a regular schedule and keep exclusion lists for self-exclusion, GamStop and problem-gambling queries up to date, particularly on platforms that lean on broad or automated matching. Our UK news hub will keep tracking ASA rulings on gambling advertising.

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Source: gambling.com