Casino Not On GamStop UK is an independent comparison site for British players researching online casinos licensed outside the UK Gambling Commission. We do not run a casino, hold player funds or process a single payment. Our work is reading, testing and explaining, so that anyone weighing up a site not on GamStop can make that decision with the facts in front of them rather than a banner.
Who runs this site
The site is run by a small editorial team that has covered the UK online gambling market since 2017, first through trade coverage of operator licensing and later through hands-on reviews of casino products. One editor writes or signs off every review published here. A second team member fact-checks offers and payment details before a page goes live, and again whenever an operator changes its welcome package.
We are a small team by design. Two people reading terms and conditions closely produce more reliable pages than a content farm producing fifty a week, and it means every page has one person responsible for what you read.
How we test a casino
Every operator covered on this site goes through the same sequence before it earns a place in our rankings:
- Licence check. We locate the licence number in the site footer and confirm it against the regulator’s public register, most often Curaçao, Anjouan or Kahnawake.
- Terms read-through. We read the general terms and the bonus terms in full, noting wagering multipliers, maximum bet while a bonus is active, win caps and expiry windows.
- Cashier review. We record every deposit and withdrawal method shown to a UK visitor, stated processing times, minimums and any fees.
- Game catalogue audit. We count providers, check for live dealer tables and confirm that well-known studios are genuinely present rather than listed in marketing copy only.
- Support test. We contact live chat or email with a real question and log how long a useful reply takes.
- Player-protection tools. We check whether the account area offers deposit limits, time-outs or self-exclusion independent of GamStop.
How our scores are built
Each casino receives a score out of five. The score is a weighted total of the checks above rather than a single impression:
| Criterion | Weight | What moves the score |
|---|---|---|
| Licensing and transparency | 25% | Verifiable licence, named operating company, clear ownership |
| Bonus fairness | 20% | Wagering at or below 40x, realistic win caps, 7+ days to clear |
| Payments | 20% | GBP support, card and e-wallet options, withdrawals under 48 hours |
| Games and providers | 15% | Breadth of slots, tables and live dealer from recognised studios |
| Support and usability | 10% | Staffed live chat, mobile-friendly cashier, clear account pages |
| Player-protection tools | 10% | Account-level limits and self-exclusion available on request |
A score of 4.5 or above means a casino passed every check with no reservations. Between 3.5 and 4.4 it is recommended with a weakness noted in the review. Below 3.5 we do not recommend it. A casino that fails the licence check is not scored at all. It is left off the site.
Independence and how we are funded
Casino Not On GamStop UK earns affiliate commission when a reader clicks through to an operator and opens an account. That income pays for the site. It does not buy a position in our rankings, and no operator has ever been offered one. Where a commercial partner scores poorly on our checks, that score is published unchanged. We have no connection to GamStop, the Gambling Commission or any casino we review.
How often pages change
Welcome offers, payment lists and game catalogues shift constantly. We re-check every ranked casino at least once a month, and sooner when a reader flags a change through our Contact Us page. Each review carries the date of its last fact-check so you can judge how fresh the information is.
Corrections
If we get something wrong, we fix it and note the correction on the page. We would rather hear about an outdated bonus figure than leave it standing, so please tell us.
A word on self-exclusion
Sites outside the UK licence are legal to use, but GamStop exists for a reason. If you registered with it to protect yourself, read our Responsible Gambling page before going any further. It covers the tools that still work when GamStop does not apply.
For the full comparison of sites we currently recommend, start with our casinos not on GamStop UK guide. The rules governing use of this site are set out in our Terms and Conditions. This site is for adults aged 18 and over only.