Question 1

What exactly makes two online casinos sister sites?

Accepted Answer

Two casinos are considered sister sites when they are owned and operated by the same parent company and share the same UKGC remote operating licence. They typically use the same payment infrastructure, the same game platform, and the same back-office systems. While each brand may have a different name, logo, and promotional theme, they are legally and operationally part of the same entity. Common indicators include identical legal disclaimers in the footer, matching registered addresses, and near-identical game libraries.

Question 2

Can I claim a welcome bonus at a sister site if I already have an account elsewhere in the group?

Accepted Answer

In the vast majority of cases, no. UK operators almost universally restrict welcome bonuses to customers who are entirely new to the operator group — not just new to that specific brand. If you have ever registered, deposited, or received a bonus at any sister site under the same licence, you will typically be ineligible for a new-player offer at another brand in the same network. Always check the bonus terms and conditions, which should specify whether the restriction applies group-wide.

Question 3

If I self-exclude from one casino, does it apply to all its sister sites?

Accepted Answer

Yes. Under UKGC regulations, operators are required to apply a self-exclusion across all brands they operate under the same licence. This means that if you self-exclude from one brand, all sister sites sharing that licence must also honour your exclusion. In addition, registering with GAMSTOP — the national self-exclusion scheme — bars you from every UKGC-licensed operator simultaneously, regardless of which group they belong to.

Question 4

How do I check which casinos are sister sites of one I already use?

Accepted Answer

The easiest method is to scroll to the footer of both casino websites and compare the legal entity name and UKGC licence number. If these match, the sites are sister sites. You can also use the UKGC's public licence register, which lists all trading names authorised under each licence number. Specialist affiliate guides that track operator ownership are another quick resource, saving you the time of cross-referencing official documents manually.

Question 5

Are sister sites always worse than independent casinos for players?

Accepted Answer

Not necessarily. Sister sites within a reputable group often benefit from greater investment in security, faster payment processing, and more reliable technical infrastructure compared to smaller independent operators. The trade-off is primarily around bonus eligibility and variety of game catalogue. An independent casino may offer a more distinctive experience or unique titles, but it can also carry higher operational risk if it lacks the financial backing of a large group. The right choice depends entirely on what you prioritise as a player.

Question 6

Do sister sites share my personal data with each other?

Accepted Answer

Because sister sites operate under the same legal entity, your personal data is controlled by the same data controller whether you use one brand or five. This is not data sharing in the sense of passing information to a third party — it is the same company operating multiple front-ends. The operator's privacy policy, which is usually identical across all sister sites, will explain exactly how your data is processed and stored. From a GDPR perspective, this means a single data subject access request covers your activity across all brands in the group.

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