UK gambling advertising rules for search content

UK gambling advertising rules apply to search content whenever that content is marketing: an operator's own bonus and promotions pages, an affiliate's paid placements and reviews written to drive sign-ups, and operators' social posts. Purely editorial content, such as independent journalism, sits outside the advertising code. In practice the line falls between pages that sell and pages that inform, and much of what ranks for commercial gambling searches falls on the selling side.

This guide is editorial information about Great Britain's rules as of 24 October 2026. It is not legal advice; operators should take compliance advice on specific content.

Who makes the rules

Three bodies matter. The Gambling Commission licenses operators under the Gambling Act 2005 and sets licence conditions, including social responsibility requirements on marketing. The Committee of Advertising Practice (CAP) writes the UK Code of Non-broadcast Advertising, Sales Promotion and Direct Marketing, whose section 16 covers gambling. The Advertising Standards Authority (ASA) enforces that code and publishes rulings. An industry code from the Industry Group for Responsible Gambling adds requirements such as 18+ and safer gambling messaging, and Gambling Commission licence conditions expect operators to follow it.

Does the CAP Code cover organic pages?

The ASA has applied this broadly in gambling. Its advice on appeal to children notes rulings against an odds comparison site's social posts and against an operator's own non-paid posts on X. From 1 September 2025, CAP extended the online remit to non-paid marketing by operators licensed by the Gambling Commission but registered overseas, closing a gap that had left some offshore licensees' unpaid content outside the Code, according to a CMS legal update on the change.

The rule that catches most content: strong appeal to under-18s

Since 1 October 2022, CAP rule 16.3.12 has prohibited gambling marketing that is likely to have strong appeal to under-18s, replacing a weaker "particular appeal" test. Strong appeal can come from imagery, characters, sportspeople and celebrities popular with young audiences, or from the style of the content. For search content this affects featured images, game artwork shown on pages, and sports content using players with large young followings. The ASA's guidance indicates that targeting can help where under-18s are robustly excluded from the audience, which is rarely possible for an open web page.

Bonus pages after January 2026

The Gambling Commission's promotions changes took effect on 19 January 2026. Wagering requirements on bonuses are capped at 10 times, bonuses that mix products such as betting and casino are banned. Online slot stakes were already capped from 2025 at £5 per spin for players aged 25 and over and £2 for those aged 18 to 24.

The search consequence is mainly about old content. Bonus explainers, comparison tables and landing pages written before 2026 may describe wagering terms or mixed offers that can no longer be offered. A page that ranks well for a bonus query but describes a non-compliant offer is a compliance problem regardless of its traffic. Reviewing every indexed promotional page against the current rules is a short, high-value task.

Affiliates: the operator carries the responsibility

The Gambling Commission's guidance on affiliates and third parties is direct: licensees must take responsibility for third parties they contract with. In joint guidance with the Information Commissioner's Office on direct marketing, the Commission says operators are primarily responsible for marketing sent on their behalf, including by affiliates. Separately, the Licence Conditions and Codes of Practice require operators to take reasonable steps to ensure third parties do not advertise their services on websites providing unauthorised access to copyrighted content.

For affiliates, this means operators have strong reasons to audit what affiliates publish, including organic review and comparison pages, and to end relationships over non-compliant content. For operators, it means search content they do not write can still become their problem.

What applies to which kind of page

Paid search sits under a separate set of rules from Google itself; its 2026 certification changes for gambling advertisers are recorded in our guide to Google Ads gambling policy.

A practical review order

For a UK-licensed brand, the most efficient review starts with indexed promotional pages, checked against the January 2026 bonus rules. Next come images and sports content, checked against the strong appeal test. Then affiliate content that ranks for brand plus bonus queries, since the operator carries responsibility for it. Safer gambling messaging requirements, which also differ in Ontario and the US, are compared in our guide to responsible gambling messaging by market, and the wider market picture is in our comparison of regulated markets.