Sports
Are all online casinos created equal? How experts cut through the hype
At a glance: Online casinos and expert reviews
Independent expertise: Casino.org has reviewed online casinos since 1995, making it one of the longest-established resources in the sector
What’s reviewed: Licensing and regulation, payout reliability, return-to-player percentages (RTPs), bonus and withdrawal terms, and responsible gambling measures
Bonuses explained: Sign-up bonuses are incentives, not free money, and usually come with wagering requirements and restrictions
Fair play: Licensed online casinos use random number generators (RNGs), meaning each game outcome is statistically independent
Any savvy consumer knows there is no such thing as a free lunch. Then, amid a whirlwind of online and half-time ads promising “Bet £10, Get £50”, or “100 free spins”… one starts to wonder.
Online casino bonuses promising to match or exceed your deposit certainly look like free money, so it’s hardly surprising they entice many of us into the world of online gambling. But, like much of that world, bonuses are commonly misunderstood, and the fine print can be indecipherable.
For 30 years, experienced gamblers and novices alike have turned to Casino.org to decipher that fine print, to give recommendations of who to trust and who to avoid, and to provide a safe place to learn how to play.
When free doesn’t mean free: the myth of the sign-up bonus
In addition to the backbone of its work, analysing 400 online casinos in over 150 countries, Casino.org reviews more than 500 online casino bonuses every month.
Many assume the bonus is a gift, but it’s a marketing tool with rules attached. A £50 bonus might have to be wagered 40 times before winnings can be withdrawn, while certain bets may contribute more or less to those requirements, or be excluded entirely.
Casino.org’s experts drill into the details and consider the wagering requirements and withdrawal limits, as well as whether the bonus improves the experience – or just elongates your stay at the table.
Getty Images
Why our instincts can misread the odds
It isn’t just sign-up bonuses that can be hard to get our heads around.
On 18 August 1913, at the grand Casino de Monte-Carlo, the roulette ball landed on black a staggering 26 times in a row. The odds of that are one in 66 million, and as the streak lengthened, Monaco’s aristocratic punters lost more and more millions on red, wrongly thinking their odds were improving because red was “due”.
Conversely, many people share the opposite belief that luck comes in streaks – if you won last time, you’re on a roll and more likely to win this time.
But for each new spin, red and black are equally likely, regardless of what happened before.
These instincts are hard-wired. In 2014, researchers found that monkeys given a gambling game shared the “hot hand” fallacy – presented with a 50/50 outcome, they thought the previously winning option was more likely.
In truth, a slot machine does not “remember” losses, a win is no more or less likely after a losing streak, and bonuses do not improve mathematical odds.
In fact most online casinos use random number generators (RNGs), which ensure outcomes are statistically random over time.
In its strategy explainers, Casino.org helps readers overcome their monkey brains by focusing on how the systems are built, rather than promising ways to beat them.
Clear guides explain why the house’s edge, return-to-player percentages (RTPs) and volatility all matter more than chasing patterns.

Getty Images/iStockphoto
How experts review and rank online casinos
Casino.org’s panel of experts with decades of first-hand experience use a 25-step methodology honed since 1995 to assess every online casino the site reviews.
It gives credit for transparency and frowns upon inflated offers. It looks for fair RTPs across the whole online casino, not just some games. It looks for reliable payouts.
Also, it pays particular attention to player safety by monitoring regulatory changes, online casino licences and responsible gambling tools.
This helped land the site’s new brand ambassador, former professional footballer Michael Owen, who praised the focus on player safety and the site’s “reputation for expertise and integrity”.
Every operator is tested anonymously with real money, and the site is free to use.
When free really does mean free: learning without spending
Casino.org also boasts 21,300 free online casino games which can be experienced without wagering a penny, most of which don’t require sign-in or registration.
Thousands of slot games, roulette, blackjack and video poker allow players to learn rules without financial jeopardy, get a feel for pace and volatility, and see how bonuses and features function.
Learning without losing helps insulate players from financial harm and reframes gambling as a form of entertainment with clear limits, rather than a skill to be mastered for profit.
For many players, simply knowing what to expect can make the difference between feeling in control and feeling swept along by the game.
Gambling can be addictive. Always play responsibly and only bet what you can afford to lose. Gambling sites have a number of tools to assist you to stay in control, including deposit limits and time outs. If you think you have a problem, advice and support is available for you now from BeGambleAware or Gamcare
