November 12, 2026


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Natalie
Website administrator
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Natalie
Website administrator
September 22, 2026
6 Min Read

One UKGC License, Twelve sites: What are Casino Sister Sites

Two online casinos that look different but feel remarkably similar. Different casino, same brand with the same colours, website design, and games. One UKGC license. These are sister sites. They share the same owner or, more specifically, the same licensed operator. The UK Gambling Commission (UKGC). They also share the games, customer support, payment providers, and responsible gambling tools.

This means that two online casino brands can appear to compete with each other, but actually belong to the same wider group. Here’s more on the differences between casino sister sites and white label casinos.

Understanding Casino Sister Sites and the White Label Model

The simplest way to understand a casino sister site is to think beyond the brand name. For example, the Genesis Global group owns various casinos, including Casino Masters, Casino Dome, Spinit and Casoola.

One casino might have a traditional casino design; another concentrates heavily on slots. Despite their different appearances, the underlying operations can be closely connected.

The white-label model is slightly different. In this case, a company can launch its own casino brand. They can use the most up-to-date technology, games, and payment systems. To the player, the casino appears like an entirely independent brand.

In simple terms, sister sites are different casino brands connected by the same group. The branding can be completely different, which is precisely the point of the model. A player may think they have discovered a new casino, but it’s actually a familiar platform.

The Core Concept: Shared Operations, Different Facades

Consider sister sites as different shopfronts connected to the same gambling family. A glossy new casino homepage can make an online casino appear independent. A different domain does not automatically mean a different licence.

Find out more by using the UKGC search feature. Find a casino by its domain name, business name, or account number. This allows you to look behind the branding rather than relying solely on the casino website.

White Label Casinos: Sister Sites with the Pretence Removed

White label licensed casino operators provide the underlying gambling platform. Multiple front-end brands operate on top of it. From the player’s perspective, these websites can look like independent casinos. Behind the scenes, however, they may share the same technical and regulatory structure.

Think of white-label casino sites as sister-sites “with the pretence removed.” The different brands may present themselves as separate gambling websites. That does not necessarily mean they are independent operations.

The UKGC’s business-register data includes information relating to white-label arrangements and associated domains. The UKGC register also shows how many trading names and domain names are associated with a casino.

This can be useful when a casino appears to be brand new. Just because a site has a new name and fresh website design doesn’t mean it’s a new operator.

The Practical Consequences of Playing at Sister Sites

This is where the subject becomes much more important for players. When several casino brands share the same operator, players benefit. Before signing up to multiple sister sites, check this important information:

  • Account eligibility – Some casinos restrict players to one account across a group.
  • Welcome bonuses – Welcome bonuses could be linked to one household per casino.
  • Duplicate accounts – Many casinos restrict opening multiple accounts. Punishment could include account restrictions or cancelled promotional winnings.
  • Identity verification – New sister sites may still require their own verification checks.
  • Payments – Using the same payment methods at related casinos can come with restrictions.
  • Terms and conditions – Always read through the bonus T&C’s as they vary between casinos.

Beware of Account Restrictions and Bonus Limitations

Let’s look at a real-time scenario to explain account and bonus restrictions. You have an account with Casino A, and then register at Casino B. The two casinos have different names, a different colour scheme, and a separate welcome offer. You sign up and accept the welcome bonus.

If Casino A and Casino B are within the same group, the promo may not be considered a second independent offer. The operator will consider you as having had a welcome bonus.

Check the online casino’s bonus terms before registering. If the casino believes you breached the terms, it may remove your winnings.

The same can apply to account restrictions. If one casino has a verification or account issue, moving to another sister site may not solve it. Related brands can share information and compliance systems. The safest rule is that a different logo does not always mean a completely separate account.

How to Identify Casino Sister Sites: Using the UKGC Public Register

Players don’t have to rely entirely on detective work. They can search the UKGC’s public register via:

  1. Business name of casino
  2. Trading name of casino
  3. Domain name of casino
  4. Account number of casino

In the register, you will find information about licensed gambling businesses and their associated domain information: https://registers.gamblingcommission.gov.uk/

The UKGC also makes register data available for download in Excel and CSV. That means the information is not limited to a simple website search. Researchers can also examine the underlying datasets. The register is therefore a useful first stop whenever you want to know who is really behind a casino.

Sister Sites and Self-Exclusion: GAMSTOP’s Blanket Coverage

One thing a sister site cannot be used for is getting around a GAMSTOP self-exclusion.

GAMSTOP is designed to prevent registered users from gambling online with GB companies. All online gambling companies licensed in Great Britain must participate in GAMSTOP. Online casinos must check a person’s status when they register.

GAMSTOP currently offers self-exclusion periods of:

  • Six months
  • One year
  • Five years
  • Five years with automatic renewal.

Exclusion covers UK casinos and sportsbooks, not just one casino brand. This is an important distinction. The protection is based on the regulated gambling service and participating operators. It’s not based on whether two websites happen to have the corporate identity.

Conclusion: Navigating the World of UKGC Sister Sites

Casino sister sites can make the online casino world look much more fragmented than it really is. Different names, logos and designs can hide shared ownership, licensing, technology and infrastructure.

That is why looking beyond the casino itself can reveal a much bigger picture. The white-label model makes this especially clear. The UKGC register can also uncover connections between businesses, trading names and domains.

For players, these connections can matter. An account or verification issue may not disappear simply by moving to a sister site. A welcome bonus advertised across several brands doesn’t mean you can claim it multiple times. Always check the terms before depositing.

There is one line that should never be crossed. Sister sites are not a way around self-exclusion. The most useful lesson is simple: look beyond the logo. Check who operates a casino, which licence it holds and what other brands are connected. This information will tell you far more than the homepage ever will.

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