Most online casinos look alike from the outside. The differences that matter are in the licence, the small print and the cashier. Here is the checklist we use ourselves, in the order we use it.
1. Confirm the UK licence
Scroll to the footer and find the Gambling Commission licence number, then search for it on the Commission's public register. Check that the licence is active and that the exact website you are on is listed under the domain names for that account. A UK licence means the operator must verify your age, offer safer-gambling tools, keep to advertising rules and give you access to independent dispute resolution.
Sites that advertise themselves as "not on GAMSTOP" are not licensed to serve players in Great Britain. If something goes wrong there, you have no UK regulator to turn to.
2. Read the welcome offer properly
- Wagering: capped at 10x in Great Britain since January 2026. No-wagering spins are simpler: winnings are cash.
- Qualifying stake: some offers need a deposit, others need you to stake an amount first.
- Eligible games and spin value: most free spins are worth 10p and tied to one slot.
- Expiry: spins that expire in three days are worth less than spins that last a week.
- Payment exclusions: PayPal or prepaid deposits are sometimes excluded.
3. Look at the cashier before you deposit
Check which withdrawal methods are offered, the minimum withdrawal, any fees, and the stated processing time. A casino that pays out in hours by debit card or PayPal is easier to live with than one that takes five days, whatever its bonus.
4. Find the safer-gambling tools
You should be able to set deposit limits, take a time-out, set reality-check reminders and self-exclude from within your account. If those settings are hard to find, that tells you something about the operator's priorities.
5. Check the games you actually play
A lobby of 5,000 slots doesn't help if you mostly play live blackjack. Look for the providers you like, table limits that fit your budget, and whether the app or mobile site works well on your phone.
6. Test support with a simple question
Before depositing, ask live chat or email something specific, such as how long a debit card withdrawal takes. A clear, quick answer is a good sign.
Red flags
- No licence number, or one that doesn't match the register.
- Pressure to deposit more, or bonus offers after you have set a limit.
- Withdrawal rules that are vague or that change after you ask to cash out.
- Credit card deposits accepted from UK players.