Research standards

How we rate

Casino sister-site research starts with the company accepting your account, not a star score. We check published agreements and company announcements before describing two brands as connected.

A confirmed owner doesn't make every sister suitable for every customer. Your existing registration, account restrictions and the casino's current conditions need answers of their own.

The numbers on casino cards

The displayed casino scores don't come with a published Vivaldo scoring formula or documented account-testing results. We haven't carried out deposit tests that would justify treating a decimal difference as a measured improvement. A 4.9 rating shouldn't be read as proof that a casino is more dependable than one displaying 4.8.

Our ownership research is separate from those numerical labels. A star rating cannot establish whether two casinos share an operator or accept the same login. We assess those statements against named companies and published account terms, without converting them into a claim about the likelihood of winning.

What supports a connection

The casino's customer agreement identifies the business accepting the registration. A parent company's announcement can establish who owns that business, but it doesn't replace the customer agreement. We keep the casino address and country with the company name so similarly branded services aren't mixed together.

Account help must support any further statement about shared access or restrictions. A supplier announcement establishes a technology relationship, not necessarily shared ownership. When the available information stops at the operator connection, we don't extend it into an unconfirmed promise about balances or credentials.

Sources for casino relationship claims
ClaimSupporting information
OperatorThe company named in the casino's customer agreement.
OwnerA company announcement identifying the completed purchase.
Shared accountPublished terms naming the services that share access.
Past relationshipA dated record distinguishing former and current operators.

Dates change the answer

A completed sale and an announced proposal belong to different stages of a transaction. We use the completion information before describing a casino as part of its buyer's group. Older ownership details remain relevant when they explain an account opened before the transfer.

Heart Bingo's former Gamesys connection is one such historical relationship. Treating it as current would confuse its earlier customer history with the company running today's service. We keep a date beside a research check, because later terms or ownership changes can alter the answer.

Promotions aren't ownership proof

Matching offers and familiar games don't establish that casinos are sisters. We don't use the size of a welcome offer, a cashback label or payment logos to support a company relationship. The receiving casino's current terms determine whether a promotion applies to your account.

Casino links marked as sponsored are separate from the documents supporting our research. An outgoing link isn't a source for a shared-login claim. Gambling is for adults, and a comparison should never encourage you to ignore a restriction or spend money needed for ordinary bills.

Follow the company connection behind the casino name.

About Vivaldo

Find out what our research covers and where to send a correction about a casino relationship.

Casino company groups

Distinguish the operating company from the wider owner when comparing related British casino brands.

When operators change

Follow the Heart Bingo and BetMGM examples to understand why a familiar casino can gain different sisters.

Portrait of Joseph Hurtado

Joseph Hurtadooperator evidence reviewer

Reviews named casino companies and their licensed brands.

I check company names and distinguish completed ownership changes from proposed deals. I'd leave an account feature unconfirmed when the available terms don't establish it.

Frequently asked questions

Do the stars prove two casinos are related?

Company and account information establish a sister-site relationship, not star ratings. Identical scores, games or promotional labels don't confirm a shared operator.

Have you tested every casino account?

We haven't opened accounts or deposited money to test the published relationships. Our checks concern documents and company information; they don't establish hands-on results for every customer feature.

How can I report an outdated ownership claim?

Email editor@vivaldo.co.uk with the casino name, the disputed statement and the current company announcement or terms. Don't send passwords, identity documents or payment details.