Best Online Casino Reviews in 2021

Choosing an online casino can be overwhelming. To help you find the best casino experience, we take an honest look at the criteria used to ensure that our site offers only the best online casino reviews that are both truthful and credible.

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Best Reviewed Casinos for 2021

#1
Bet365
100% Welcome Bonus Up To £100
  • Huge number of payment options
  • Excellent loyalty program
  • Massive number of games
* more terms & conditions apply

Ad. 18+. Deposit min. £10. Max. bonus £100. 20x wagering (game weighting, table coverage and max. bet rules apply) on deposit and bonus to make the bonus balance withdrawable. Time limits and T&Cs apply.

#2
William Hill
Welcome Offer Varies by Country
  • Great live dealer games
  • Trusted UK brand for 75 years
  • Extensive free play options
* more terms & conditions apply
#3
888
100% of up to £200 +25 Free Spins
  • Low minimum deposits
  • Lots of promotions
  • Great VIP program
* more terms & conditions apply

#4
Sloty
100% up to £1,500 + 300 Bonus Spins
  • Over 1,300 slots and games
  • Unique VIP awards
  • Impressive welcome bonus
* more terms & conditions apply
#5
King Billy
100% up to €200 + 200 Spins
  • 6,000 slot games
  • Great reputation
  • 0-1 hour withdrawal times
* more terms & conditions apply
#6
LeoVegas
Up to 100% of £400 + 200 Bonus Spins
  • Huge number of games
  • 24/7 Customer live support
  • Award winning mobile experience
* more terms & conditions apply

#7
Betfair
£10 Deposit, Get £40 + 100 Free Spins
  • 400+ games
  • Powered by Playtech
  • 20 years gaming experience
* more terms & conditions apply

1) New Customers Who Have Not Played Casino Only. 2) Register Using Promo Code CASF51. 3) Winnings Paid As Cash. 4) T&Cs Apply. View Details

#8
Paddy Power
Deposit £10, get £60 + 20 Free Spins
  • Huge UK gambling brand
  • Lots of progressive slots
  • No withdrawal limits
* more terms & conditions apply
#9
Mr Green
100% up to £100 + 50 Free Spins
  • Casino of the year 3x running
  • Live dealer games
  • New mobile casino 70+ slot games
* more terms & conditions apply
#10
22Bet
100% Up To £250
  • Casino games from 10x providers
  • Lots of banking methods
  • Dedicated mobile site
* more terms & conditions apply

 

Why Do We Review Online Casino Sites?

Here at Top 10 Casino Sites, we see our job as helping gamblers make informed decisions when it comes to choosing a new online casino. With so many to choose from, it's both our aim and responsibility to provide honest and relevant facts, concisely and with clarity. And when it’s your own money you’ll be playing with, then trust matters. To that end, we take online casino reviews very seriously, and hope that our hard work will pay dividends when you start your online casino journey.

 

How Do We Create Our Online Casino Reviews?

Once we’ve decided on an online casino to put under the microscope, we sign up and take the site for a spin. In order for the site to obtain our stamp of approval, it will need to pass a number of strict review criteria. All of these are features that are important to players.

 

Standout Features Within Online Casino Reviews:

<strong>What Factors Do We Look for?</strong> What Factors Do We Look for?

With the number of online casinos appearing to increase almost daily, it’s important that we are able to sort the wheat from the chaff. Working alongside independent reviewers, as well as taking customer feedback into account, we rank both new and established online casinos for all the below factors in our online casino reviews:

  • Game Selection
  • Software
  • Standout features
  • Mobile options
  • Bonuses and promotions
  • Security and safety
  • Banking deposit options
  • Payout options, conditions, and speed
  • Localisation
  • Customer care

For each of the above categories, we investigate even the most minor aspects to ensure that only the best sites around make up our top online casino reviews.

 

Game Selection

While it’s true that we would expect most online casinos to have a large selection of games, we’re more interested in quality over quantity. That’s because not all games measure up equally when it comes to aspects such as as Return to Player percentages, playability, and audio and visual presentation. To that end, we take a deeper dive and also take a look at the games providers that are supported by the casino question. Renowned companies like Evolution Gaming and NetEnt have incredibly high standards for their games, ensuring that you have a wonderful and thrilling experience. The number of existing game variants is also an important point, as well as games to suit a variety of budgets.

It’s always worth taking a look at the live dealer game selection. Most online casinos will offer the staple choices of live blackjack and live roulette, though the ones that scored better for our reviews also offered plenty of other live games, including Stud Poker, Monopoly, Football Studio and Caribbean Stud Poker, to name a few.

 

Casino Bonuses

With so many online casinos vying for the attention of new customers, the bonus has become a significant weapon in the casino’s arsenal. Though you’ll find any number of welcome bonuses, we like to look a little further than this and see if a casino will reward existing loyal players as well. These loyalty bonuses can consist of extra spins, reload bonuses, and even holiday bonuses on Christmas and Easter. Although they are a great way to boost your bankroll, be sure to check how long your bonus will remain valid, as some online casinos will withdraw it within a few days. One of the biggest welcome bonuses we could find is from Nomini Casino, where you can get a 50% bonus up to €1000 on slots.

When we examine online casino bonus offers in our online casino reviews, the following are some of the main factors taken into account:

  • A high bonus with a matched deposit of 100% or more
  • Easy wagering requirements
  • Valid over a long period of time
  • Online slots with extra free spins
  • A playthrough that allows other games apart from just slots to contribute

Though the welcome bonus and no-deposit bonus play an important role within our casino site reviews, there are a huge number of options tied to each one that can make it difficult for us to make a like-for-like judgement. For example, you could come across a very generous welcome bonus, only for it to transpire later that the wagering requirement was 65x. This means you would have to play the bonus value 65 times before you could actually get to it. Remember that there’s no obligation to accept any bonus when you join an online casino.

The bonus itself normally be given in one of two ways: either automatically when you make your first deposit, or by claiming it manually. If you wish to join a site and play without any bonus, then you’ll need to decline the offer by contacting customer support.

 

Mobile Experience

With so many online casino games being played over mobile, it’s become increasingly important that they are optimised to work seamlessly across all mobile devices.

To start with, you should be able to make the switch from laptop to phone seamlessly, with ultra-fast loading times for the latter. The user interface also needs to be clean and easy to understand, so you can find everything you need quickly and without any hassle. Additionally, the gameplay should be smooth and glitch-free, whether playing with an app or within a web browser, without experiencing any frustrating crashes. Last, but definitely not least, it’s important that the player can access all vital information, such as bets placed and payout rates, with ease.

 

Licences

If you’re a UK player, then please ensure that your chosen casino has a United Kingdom Gambling Commission licence. This is, without a doubt, one of the most respected licences that any casino can be granted. Every aspect of an online casino's business practice is inspected and tested, with some of the strictest audits in the world. You can find an online casino’s licensing information by simply scrolling down to the bottom of the site’s main page.

All gambling in the United Kingdom falls under the Gambling Act of 2005, which lists a wide number of legal requirements all online casinos must comply with. These include:

  • The highest levels of data encryption standards, including HTTPS and SSL certificates
  • No personal details can be passed to a third party, in accordance with the Data Protection Act
  • Deposits are to be held in separate accounts from the casino
  • Guaranteed RTP rates, verified independently and listed on the site
  • Guaranteed payouts

Two other important licensing authorities are the Gibraltar Regulatory Authority and the Malta Gaming Authority. We should point out that, though the UK Gambling Commission is regarded to be of a higher standard than these other two, they are all considered to have excellent reputations.

 

Payment Options

One of the most important aspects of online gambling is to ensure that making deposits is safe, secure and fast. You also want a casino that offers a large range of deposit methods, which should all be without additional fees. Though it was once the most popular option, since April 2020, the use of credit cards has been disallowed. In spite of this, there still remain a wide variety of deposit methods. These include:

If using Bitcoin is your preferred method, then we highly recommend 7BitCasino as they offer a great welcome bonus in BTC. Though we prefer online forms of depositing due to convenience and instant access, we understand that many punters like to use offline methods. (Normally, this involves a trip to the bank). However, you may well find that it takes up to a few days to execute the payment.

 

Customer Service

You can see how much a casino values its customers by the professionalism of their customer support, ideally available 24/7. If an issue arises, then you want to be met with a polite, patient and pleasant person, as opposed to a cold machine or even worse, a bot! When putting together our online casino reviews, we check response times, including how long it takes to get responses via email and live chat. Telephone support response times should be within a single working day and free of charge. Overall, however, we would recommend that you always use the live chat function. Not only is it more convenient, but it will usually get your issues dealt with, or your problem solved, much faster than other methods.

 

Safety and Security

As you’re going to be gambling with your own funds at the online casino, it’s imperative that you are confident that your money is secure and safe. All online UK casinos have to abide by the Data Protection Act, which is vital as you’ll be asked to share your personal and banking details. As part of our online casino reviews, we take into account the casino’s data encryption standards, as well as ensuring the casino is backed by a legitimate licence issued by a recognised and respected licensing authority.

 

RTP Ratings

Many online casinos will list their RTP percentage rating for all their games. Before we go on, it’s important that you understand exactly what the RTP represents.

Many new players think that the RTP rate represents a guaranteed amount you’ll win when playing certain games. But you must keep in mind that these rates are averages, collected over considerable periods of time. In other words, on some days you’ll win and on others, you’ll lose. You should look at the RTP rate as you might look upon the house edge, a.k.a. the degree to which the house maintains an edge over all the games you play.

For many table games, the RTP remains the same across all online casinos, as these are the rules of those particular games. Where you will find a considerable difference is with games like slots. The RTP here will vary hugely, going from 90% to 99%. On the whole, we suggest that you stay away from any game offering less than 92%. Mega-Joker at Miami Club Casino is an example of a slot to look out for, offering one of the highest slot RTPs at 99%.

If you play at land-based casinos, then you’ll notice that the RTP is much lower. This is due to the fact that running a real brick-and-mortar establishment is much more expensive than running an online business. On the other hand, the high RTPs for online entities have helped oversee the huge growth in online casino activity.

 

Responsible Gambling

Many online casino reviews will cover player protection, but with a focus on frauds, scams and rip-offs. One subject matter that’s often treated as taboo are measures taken towards responsible gambling. For some gamblers, there’s a possibility of developing gambling addiction, causing problems over time. We applaud casinos who have the foresight and willingness to tackle these important issues. A respectable online casino will work hand-in-hand with organisations who deal with the prevention and treatment of gambling addiction, such as BeGambleAware, Gamblers Anonymous and GamCare. They will also display an array of tools so that problem gamblers are better able to help themselves, including self-exclusions from their accounts, deposit amount alerts, gambling time checks and time outs.

If you feel that you are in need of help with a gambling problem, then please contact the National Gambling Helpline by calling 0808 8020 133. The UK Gambling Commission also has links for helpful organisations on their website, including the NHS. As a given, when you play, please do so responsibly.

 

Localisation

If you’re playing at non-UK based online casinos, then ensure that the casino is able to offer a customised experience related to your region. This will include checking the range of languages spoken and different currencies accepted.

 

Top 5 Online Casino Reviews

Due to the sheer number of different criteria used to create an online casino review, many will end up sharing the same score, but for a variety of different reasons. Below are our top 5 online casino reviews.

 

1. LeoVegas Casino

Because they started out in the online casino space with mobile apps back in 2012, LeoVegas offer a superior mobile experience when compared with other online casinos. With a huge choice of games, as well as generous bonuses and free spin offers, there's so much to enjoy! Loyal customers are also very well catered-to, with many VIP rewards available. 

 

2. 22Bet Casino

This site is one of the more recent additions to the online casino space. Launched in 2018, 22Bet have made a conscious effort to appeal to players around the world. For example, they offer their site in over 50 different languages, along with accepting almost every currency known to man. Their website is clean, modern, and easy to navigate, along with great customer support. If you’re into sports betting as well as playing casino games, then you can use the same account that you registered with for their casino products.

 

3. Mr Green

Mr Green is a multiple award-winning online casino site, boasting titles such as the Socially Responsible Operator for 2018, IGA’s Gaming Award for Live Casino of the Year 2019, IGA Online Casino Operator of the Year 2013, 2014, 2015, 2017 and the SBC Award for Socially Responsible Operator of the Year 2017. With over 1,000 games on offer in a beginner-friendly format, we think Mr Green’s reputation speaks for itself.

 

4. William Hill Casino

First established in 1934, William Hill Casino is one of the best-known casino brands in the UK. Teaming up with the respected games provider, Playtech, in 2008, they offer innovative and engaging games for desktop and mobile devices. A standout feature on their site is a live chat channel so that players can talk with each other, making you feel as though you were sitting in a real-life, land-based casino.

 

5. 888casino

A great site that is aimed at all bettors, but with an eye towards new players, 888casino offer a huge number of tutorials, with gaming strategies and pointers, across all their games. Their use of cutting edge technology ensures a top-quality gaming experience, together with the latest in casino software. Considering that they have become one of the largest online casinos in the world, they must be doing something right!

 

Blacklisted Online Casinos

Unfortunately, there are some online casinos that perform so badly in our online casino reviews, we have no choice but to put them on a blacklist. The most common issues include:

  • Bad customer support
  • Deliberately slow payouts of winnings
  • Unresolved customer issues
  • Vague wagering requirements
  • Poor quality games
  • Licensing issues
  • False advertising

If you come across any casinos with less than stellar performance, please flag them for us and we’ll take a look. In the meantime, feel free to check with the UK Gambling Commission, which maintains a list of blacklisted casinos at the UKGC Public Register.

 

Best Online Casino Reviews FAQs

❓ Why should I trust your reviews?

For a start, we personally test every casino we review. We take our job very seriously, and our independent panel of casino game experts will rank each online casino according to a number of important criteria. These include bonuses, banking, gaming variation, customer support and mobile gaming, to name just a few.

 

❓ How do I choose the right casino?

We suggest that you set some time aside to do some research using Google Search. That means carefully reading as many casino reviews online as possible, as well as popular gambling forums. Check that the sites are not blacklisted for being dishonest or dangerous, and ensure that the site in question is able to accept deposits and withdrawals from your country.

❓ How are your ratings calculated?

For all of our online casino reviews we have a list of categories, along with important criteria and values, that we test from the perspective of the player. Each one of these is given a score that goes towards the casino’s overall rating.

 

❓ What is the safest online casino?

Provided that the casino has either a UK or international licence, then you can rest assured that factors such as data protection, technical inspections and guaranteed payouts will be kept to the highest standards.

❓ How do I verify my account?

All reputable online casinos will require that you verify your account as a means of an identity check. This is to see that you’re old enough to gamble. You will need to send a copy of your driving licence or passport, along with proof of address, to the casino in question. This can be done via mail, email or as defined by customer support.

❓ What is the most important feature of an online casino?

As you’re going to be gambling with real money, then you want to be sure that all the options for both depositing and receiving payouts are legal, fast, secure and trustworthy. If there are bonuses on offer, then be sure to read the small print with regard to any wagering requirements.

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We collaborate with industry experts to make sure that our readers are getting the best possible content. All our articles are there to improve your casino experience.

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