strategy · 6 min read

How to Compare Online Casinos — The 8-Dimension Framework

Rating, licence, bonus EV, payment friction, restricted geos, currency, dispute record, and studio library. Here is the scoring model we use.

The framework

Every casino comparison — head-to-head or shortlist ranking — should score the same eight dimensions. Anything more is noise; anything less misses a critical failure mode.

Our full head-to-head comparison pages score each pair on these exactly.

1. Overall rating

Not an average of the other seven — it’s the operator’s public track record on complaint sites and its longevity. Consistent 8+/10 on AskGamblers over 12+ months means something. New operator with only 5 reviews means little.

Rating is a lagging indicator: expensive complaints (frozen accounts, voided winnings) trickle in over months. Our CasiMath rating gives 40% weight to public sentiment history, 30% to internal review, 20% to licence tier, 10% to years established.

2. Licence

Under which regulator does the operator hold a licence?

Tier-1 EU (MGA, UKGC, DGA): strong dispute infrastructure, mandatory player-fund segregation.
Tier-1 non-EU (iGO/AGCO Ontario): same standards, local scope.
Tier-2 (Curaçao GCB post-LOK 2023, Kahnawake): real regulation, weaker enforcement.
Tier-3 offshore (Anjouan, Comoros): nominal — zero effective dispute infrastructure.

See our licence tier chart for the complete overview.

Weight: +/− 20% of overall score. A well-run Curaçao operator can outscore an average MGA operator, but the ceiling is lower.

3. Bonus EV @ €100

Same Monte Carlo simulation, 1,200 runs at €100 deposit baseline, 96.5% RTP medium-volatility slots. The best-in-stack bonus EV for each operator.

Not “biggest headline bonus.” Not “highest match ratio.” The single number that captures wagering multiplier × scope × max-cashout × max-bet × game contribution × free-spins value into one comparable value.

Weight: +/− 20% of overall score for players who bonus-play. Zero for players who don’t take bonuses.

4. Payment friction

How many payment methods are supported?
What’s the deposit/withdrawal time on the best method?
Are there fees, min/max limits, or method exclusions from bonuses?
Does the operator support instant banking (Trustly, Interac, iDEAL) or only slow rails?

Weight: +/− 15% of overall score. Payment friction is where hidden cost accumulates over time.

5. Restricted geographies

Does the operator serve your country legally? If your country is restricted:

Your account can be closed at any time.
Withdrawals can be blocked citing “AML compliance.”
You have no jurisdiction to complain to.

Weight: binary — either the operator serves you or doesn’t. If restricted, skip entirely.

6. Currency support

Does the operator support your local currency natively?

Native support: no FX friction; deposits and withdrawals settle in your currency.
Auto-conversion: 1-3% spread every deposit and withdrawal, invisible in the cashier UI.
No support: not usable.

Weight: +/− 10%. Adds up over frequent play.

7. Dispute record

What happens when things go wrong? Two indicators:

Complaint volume relative to size: 5 complaints per 100k players is normal. 5 per 1,000 is a problem.
Complaint resolution rate: does the operator engage with disputes on the aggregator sites, or ignore them?

We track AskGamblers, Casino Guru, and Trustpilot complaint volume and resolution rate for every casino we review. The single most valuable signal.

Weight: +/− 20%. Bad dispute record kills otherwise-strong operators.

8. Studio library

What game providers does the operator carry? A rich library of Evolution Live, Pragmatic Play Live, NetEnt, Play’n GO, Big Time Gaming, Nolimit City, Push Gaming, and Hacksaw is table stakes at 2026.

If an operator’s library is 90% clone-tier providers you’ve never heard of, they’re probably running a whitelabel and paying near-nothing for game content. Not fraud; just lower quality.

Weight: +/− 10%. Only matters if you play many titles.

Applying the framework

Take two operators you’re deciding between:

Fill in each of the 8 dimensions for both.
Note which side wins each dimension.
Ties count as ties, not “close call in favor of X.”
Overall winner = whoever wins more dimensions, weighted by the percentages above.

Our /vs comparison pages do this automatically for every pair of tracked casinos.

Common comparison mistakes

Comparing headline bonuses. A “200% up to €500” bonus on 45× D+B wagering is not comparable to “100% up to €100” on 25× B. The wagering multiplier + scope matters far more than the ratio.

Choosing on rating alone. An 9.2 operator can have a payment method that isn’t available to you, or a restricted country list that includes yours. Rating is a shortcut, not a decision.

Ignoring licence. Every crypto operator ranks well on payment speed. Half of them are Anjouan-licensed with no dispute path. Speed doesn’t compensate for zero recourse if things go wrong.

Overweighting bonus EV. If you play unbonused, bonus EV is irrelevant. The operator’s baseline house edge and RG features matter far more.

Welcome bonus explained guide — decoding the T&C stack
Bonus hunting guide — how to systematically extract positive-EV bonuses
Casino withdrawal process guide — where operator quality shows up in practice
Licence tier chart — what each regulator actually enforces