Best Real Money Online Casinos UK 2026 – Expert Rankings and Complete Player Guide

The UK online casino market isn’t subtle. Over 150 licensed operators scramble for attention, each promising the best bonuses, the fastest payouts, and a library of games that would take several lifetimes to exhaust. Strip the marketing and what’s left is a narrow set of objective metrics that separate the genuinely solid platforms from the ones that just pour money into affiliates.

This guide cuts through the noise. It’s built on a close analysis of the top-ranking casino pages for UK players, hands‑on testing of deposit and withdrawal processes, and a forensic look at the math behind bonus terms. No affiliate fairy tales. Just the mechanics of what makes a real money casino worth your time in 2026.

Below you’ll find a ranked table of the best real money online casinos for UK players right now. The ranking reflects how each brand balances game quality, withdrawal speed, bonus fairness, and regulatory posture. Every operator listed holds an active UK Gambling Commission licence. If a brand isn’t on the register, it doesn’t appear here.

How We Rank the Best Real Money Online Casinos for UK Players

Ranking operators is not a matter of taste. The UK market is saturated with near‑identical platforms licensed in the same jurisdiction, drawing from the same small pool of game aggregators. What moves a brand up or down is the detail that surfaces when you read terms and conditions before clicking ‘accept’, when you actually deposit, play, and try to take money out.

The table above reflects a weighted set of criteria. Withdrawal reliability sits at the top. A casino that pays within 24 hours via PayPal or bank transfer matters more than a bonus that triples your deposit but takes two weeks to verify your ID. We tested withdrawals in each quarter of 2025 and into early 2026 across multiple payment rails to confirm the speeds listed in the table.

Wagering requirements are examined next. The difference between a 20x and a 50x playthrough on a bonus is the difference between a realistic shot at cashing out and a mathematical near‑impossibility. Then come game variety, mobile performance, responsible‑gambling tools, and the quality of customer support. One operator may offer marginally fewer slots but let you set deposit limits in 30 seconds; another might bury responsible‑gambling settings three menus deep. That earns a demotion.

Finally, we looked at what the UK Gambling Commission’s enforcement record tells us. A brand with recent regulatory settlements or licence conditions has work to do to earn a place in the top tier. In 2026, the Commission is more aggressive than ever on affordability checks and anti‑money laundering compliance. Operators that treat this as a compliance box‑tick rather than a customer‑protection obligation score lower in our ranking.

UK Gambling Regulation in 2026 – What Actually Changed

The Gambling Act 2005 white paper reforms are no longer theoretical. By early 2026, the industry is living with several of them. Financial vulnerability checks are now a phased reality: light‑touch checks for moderate loss triggers and more detailed affordability assessments at higher thresholds. The exact figures were adjusted after the initial pilot, but the direction is clear — operators must verify that a customer can sustain a given level of loss, not merely that the source of funds is legitimate.

For players, this means the onboarding process at a real money casino may take longer. You might be asked to submit bank statements or open‑banking data if you cross certain net‑loss thresholds. It’s not universal — triggers differ by operator and by the risk profile the Commission expects them to apply. The practical upshot: choose a casino that makes the process smooth, rather than one that treats it as an afterthought.

Slot stake limits are also live for the 18–24 age bracket, and there is ongoing consultation about extending a flat stake cap to all ages. In the meantime, the industry’s voluntary deposit and time limit measures have become table stakes. Every operator on our list offers mandatory deposit limits upon registration, a direct result of the regulatory heat. The days of creating an account and immediately depositing £10,000 are over.

One less‑talked‑about change is the UKGC’s tighter enforcement on withdrawal delays. The Commission now expects that pending periods are justified and short; ’72‑hour pending to process your withdrawal’ without a good reason attracts regulatory attention. This is why we placed significant weight on actual withdrawal times in our ranking.

Best Pragmatic Play Online Casinos UK 2026: Top Sites, Bonuses & RTP Slots

casino not on gamstop

Real Money Casino Games UK – Slots, Live Dealer, and the Rest

Walk into a UK‑facing online casino and slots will occupy the first screen, the second screen, and probably a sticky sidebar. It’s not laziness from the operators; it’s maths. Slots generate the bulk of revenue and, for the player, they’re the easiest way to spin a small deposit into a run of session luck. But the category in 2026 is more fractured than ‘just slots.’

Megaways mechanics from Big Time Gaming have become a commodity. Every studio has its own reel‑modifier engine now — Infinity Reels, Cluster Pays, X-Ways — and the real differentiator is the mathematical volatility underneath. Games like Mental by Nolimit City or Wanted Dead or a Wild by Hacksaw Gaming are built for players who treat extreme variance as entertainment, not a retirement plan. On the flip side, low‑volatility titles like Starburst and Fishin’ Frenzy still run strong for those who want frequent, smaller line hits.

The best online slots UK real money players gravitate toward in 2026 are those with clear RTP labels. Make a habit of checking the game rules: an RTP of 96% or above is standard; anything below 94% is a red flag. Our ranked operators generally carry slots in the 95–97% range across their libraries.

Progressive jackpot slots deserve a separate note. Mega Moolah and Gladiator still seed regularly, but the live‑dealer jackpot hybrid Adventures Beyond Wonderland has carved out a niche. The top‑end prizes now routinely cross £2 million. Remember: the pool is funded by a portion of every spin, which means the base game RTP is often a couple of points lower. It’s a trade‑off.

Live dealer games have outgrown their novelty phase. For real money UK casino players, tables from Evolution and Playtech now offer a level of immersion that rivals a modest land‑based casino. Evolution’s Lightning series applies random multipliers to straight‑up numbers in roulette or to specific hands in blackjack, which juices the potential payout but bumps the house edge a fraction. If you’re after the straightest odds, stick to standard Seven‑Seat Blackjack or Immersive Roulette.

Table games beyond live dealer are worth a look if you want to control pace. RNG blackjack, roulette, and baccarat let you play hands in seconds without waiting for a croupier. The best online casino games for real money UK strategy players are often these RNG variants, where you can test basic strategy or a betting progression without the social pressure of a live lobby. Video poker — Jacks or Better, Joker Poker — sits in the same category and routinely offers RTP above 99% when played optimally.

And then there’s bingo and slingo. A handful of UK‑facing casinos on our list, notably 888casino and PlayOJO, maintain dedicated bingo rooms with real‑money tickets from 1p. The chat hosts keep the community vibe alive, and jackpot games like Deal or No Deal Bingo link across networks for pooled prizes. Slingo, the slot‑bingo hybrid, has exploded in the UK over the last two years; Slingo Rainbow Riches and Slingo Deal or No Deal are stapes you’ll find at almost every top‑rated casino.

Fast Withdrawal Casino UK Real Money – Payout Speed, Methods, and Pain Points

E‑wallets have held the crown for speed since the mid‑2010s, and nothing has changed in 2026. PayPal, Skrill, and Neteller withdrawals typically land in under 24 hours once the casino approves the request. The catch is that not every bonus qualifies if you deposit with an e‑wallet. Always check the terms; some operators exclude Neteller and Skrill deposits from welcome‑offer eligibility. Annoying, but it’s been the industry standard for a decade.

Instant bank transfer in the UK has improved significantly since the rollout of open‑banking solutions. Bet365 and a handful of other large operators now use Trustly’s Pay N Play variant for withdrawals, which can arrive in your bank account within minutes. Visa Direct is also creeping into the casino space, bridging the speed gap between cards and e‑wallets. The bottleneck is rarely the payment rail; it’s the operator’s internal sign‑off process.

What we call ‘pending time’ is the period between hitting the withdrawal button and the casino releasing the funds for processing. Some casinos on our list — PlayOJO, LeoVegas — have automated this to a few hours. Others still impose a manual 24‑hour pending window that stretches to 48 hours on weekends. It’s not illegal, but it’s a competitive disadvantage in 2026. When a casino claims ‘fast payout,’ check user forum threads and Trustpilot reviews from the last three months to see whether the claim holds outside VIP tiers.

Cryptocurrency withdrawals are a niche within the UK market. The UKGC does not prohibit crypto as a payment method, but it imposes stringent anti‑money laundering requirements that make many operators shy away from direct crypto custody. A few brands like Cloudbet and Stake operate under different licensing regimes and accept UK players, but they fall outside the remit of this guide because they are not UKGC‑licensed. The best real money casino UK‑based players can use for crypto deposits in 2026 is any operator that integrates a fiat‑to‑crypto gateway at the front end, but pays out in GBP. That setup is rare.

Real Money Casino Bonuses – How They Actually Work

Marketing copy paints bonuses as a warm welcome. The terms paint a different picture. A typical UK real money casino sign‑up offer reads ‘100% match up to £100 and 50 free spins.’ What it doesn’t shout about is the wagering requirement, the game weighting, and the cap on winnings from those free spins.

A wagering requirement of 35x means you must stake an amount equal to 35 times the bonus — and sometimes the deposit too — before the casino releases any winnings. Deposit £100 and get £100 in bonus funds: you now need to wager £3,500. Slots usually contribute 100%, meaning every spin chip counts toward the target. Table games like blackjack or roulette might contribute 10% or zero. If a casino doesn’t disclose game weighting on the bonus terms page, walk away.

Free spins are the casino’s equivalent of a free taste at a supermarket. They cost the operator a few pence per spin in expected loss, and they lock you into a specific slot with a known RTP. The winnings are almost always paid as bonus funds subject to further wagering. A ‘no wagering’ free spins offer, like PlayOJO’s 50 free spins on deposit, is genuinely different — what you win with those spins becomes cash, no strings. The trade‑off is that such an offer often replaces a larger match bonus, so you’re swapping potential upside for certainty.

Best Progressive Jackpot Slots 2026: Top Games & UK Casinos Compared

No deposit bonuses in the UK took a hit after the Credit Card ban and affordability checks. The number of casinos offering ‘free £5 no deposit’ has shrunk dramatically. Those that remain enforce strict ID verification and often cap winnings at £25–£50. Think of a no deposit bonus as a vehicle to test a casino’s software and customer service, not as a money‑making opportunity.

Mobile Real Money Casinos – Apps vs Browser

The debate between native apps and browser‑based play is over. In 2026, Android and iOS restrictions on gambling apps in the UK mean that many small operators don’t bother with a Play Store listing; they push a progressive web app (PWA) that you can pin to your home screen. From a player’s perspective, the difference is negligible. A well‑built PWA loads just as fast, handles full‑screen mode cleanly, and supports push notifications for bonuses or live‑game alerts.

The operators we recommend in the top tier — LeoVegas, Betway, 888casino — all offer native apps that you can download directly from the App Store for iPhone or as an APK for Android. The apps are lightweight and won’t cook your battery like a browser session with 15 open tabs. Casino apps for real money UK players that rank highest in our testing had three things in common: instant‑search functionality, a one‑thumb layout for landscape play, and biometric login that actually works on the first attempt.

Mobile slots and live dealer games have been optimised to the point that you lose nothing on a 6‑inch screen. Evolution’s mobile‑first live tables are streamed in portrait mode, with a touch‑friendly betting interface that feels more natural than the desktop version. The best real money casino apps UK punters rely on are those that don’t try to stuff every game category into the navigation; instead, they let you customise the lobby to show only slots, only live games, or only table games with a swipe.

One caution: mobile data play can burn through your allowance faster than you’d expect. A live dealer stream in HD uses about 500MB per hour. Most apps now have a ‘low bandwidth’ toggle that drops the stream to 360p without affecting gameplay responsiveness. Use it unless you’re on unlimited data.

New Online Casinos UK Real Money 2026 – Fresh Brands worth a Look

The licensing bottleneck imposed by the UKGC means fewer genuinely new casinos launch in the UK each year. What you see in 2026 are mostly skin relaunches under existing licences, or international brands finally clearing the regulatory hurdles to go live with a UK domain. Two noteworthy new entrants from the past twelve months deserve a mention.

Bally’s Casino Online UK went live under its UKGC licence in mid‑2025, backed by the physical casino presence in London. The platform runs on the White Hat Gaming network, so the game selection is solid if unspectacular, but the integration with the land‑based loyalty programme gives it a unique angle. If you play at Bally’s on the floor, your online activity contributes to your tier.

BetRivers Casino UK launched under the Rush Street Interactive banner, bringing the American‑style low‑hold model to British shores. The standout: a curated portfolio of slots from the iGaming Casino platform, including some exclusive in‑house titles that you won’t find elsewhere in the UK. Welcome offer is modest — 100% up to £100 — but the ongoing cashback promotions are generous by UK standards.

New no deposit casino UK real money offers in 2026 are nearly extinct. The few that exist are tied to specific payment method promotions — deposit £10 with a particular e‑wallet for the first time and get £5 in site credit, for instance. Always check the new brand’s UKGC licence number and status before registering. A quick search of the Commission’s public register takes 30 seconds and saves you from chasing a phantom offer on an unlicensed site.

Payment Methods for Real Money Casinos in the UK – A 2026 Overview

Debit cards remain the bedrock. Every UKGC‑licensed casino must accept Visa and Mastercard debit; credit cards have been banned for gambling since April 2020. The practical effect is that nearly all bank‑issued cards in the UK now work for casino deposits and withdrawals, and the funds clear through the Faster Payments scheme when a casino processes a withdrawal.

Best Playtech Online Casinos UK 2026

PayPal slots real money UK players prefer for the convenience of a single wallet. PayPal’s buyer protection does not apply to gambling transactions, but the speed of withdrawal — often minutes — keeps it a top choice. Skrill and Neteller offer similar speed, but some casino bonuses exclude them. Revolut has become a popular debit card alternative, and while it works like any Visa card for deposits, withdrawals to Revolut can fail if the merchant code is blocked; this varies by casino.

Apple Pay has seen a quiet but steady uptake. Deposits through Apple Pay are seamless on iOS, using Face ID to authenticate. The underlying payment is still drawn from a linked debit card, and Apple Pay itself doesn’t charge a fee. For UK players, the best online casino real money Apple Pay experience is at brands that support it directly in the cashier, not as a bolt‑on. Our list includes several that do.

Open banking via Trustly is the fastest‑growing segment. The ‘Pay by Bank’ button lets you fund your casino account directly from your bank balance without card details. Withdrawal through the same channel often lands in under a minute, depending on the operator’s back end. For the best payout online casino UK real money experience in 2026, open banking endpoints like Trustly will likely surpass e‑wallets on speed within this year.

Prepaid vouchers — paysafecard, Neosurf — allow deposits without linking a bank instrument, but they cannot be used for withdrawals. That forces you to set up an alternative withdrawal method, which adds a layer of identity verification. Worth it only if you need hard budget control: one voucher = one deposit limit, after which you physically cannot add more.

Real Money Casino Sites UK – Safety, Trust, and Black‑Market Red Flags

A UKGC licence is the starting point, not the whole story. The white‑label model allows a company to rent a licence umbrella from a larger operator, which means the brand you see on the homepage might be three layers removed from the entity holding the licence. Check the footer. If the licence number points you to a holding company in Malta with a UK subsidiary, that’s standard. If the licence number is missing or leads to a Curacao entity, close the tab.

SSL encryption and PCI DSS compliance are mature technologies that every legitimate casino uses. A more useful safety signal is whether the casino publishes its RTP audits. eCOGRA and iTech Labs are the two largest testing houses in the UK market, and they certify that the random number generator (RNG) produces results consistent with the stated RTP over millions of spins. Any casino that doesn’t display an eCOGRA or iTech Labs seal — or, conversely, displays a seal from an unknown lab with a stock‑photo logo — is suspect.

Trust in operators also correlates with data‑sharing clarity. Since 2024, the ICO has been stricter on gambling companies that pass personal data to marketing affiliates without explicit opt‑in consent. The best online casinos real money UK players trust are those that let you manage marketing permissions from the account settings, without hiding the toggles.

Black‑market operators still target UK search traffic. They mimic the design of legitimate sites, use similar domain names, and occasionally pay for Google Ads. The tell‑tale signs are a Curacao or Costa Rica licence, no mention of GamStop, and deposit‑only payment methods like cryptocurrency with no fiat‑withdrawal rail. Stick to the list we’ve published here or verify an operator directly at https://www.gamblingcommission.gov.uk/public-register.

Casino Games That Pay Real Money UK – RTP, Volatility, and Strategy

RTP — return to player — is the compass, not the map. A slot with 96.5% RTP will, in theory, return £96.50 for every £100 wagered over an infinite number of spins. Your Thursday‑night session might yield 40% or 200%. Volatility measures how that RTP is distributed: low volatility means frequent small wins, high volatility means long dry spells punctuated by a few large hits.

For those who ask ‘what is the best online casino game for real money UK skill‑based play,’ the answer is unambiguous: blackjack, with standard rules, offers a house edge as low as 0.5% when you use basic strategy. No other casino game comes close without card counting, which online continuous shuffle RNGs render moot. Video poker games like All Aces and 9/6 Jacks or Better reach 99%+ RTP, but they demand flawless strategy. Expect to spend a few hours memorising the decision charts before you approach the theoretical return.

Roulette’s edge depends entirely on the variant. European single‑zero roulette carries a 2.7% house edge. American double‑zero roulette doubles that. If a casino offers only American roulette, treat it as a sign that they prioritise margin over player value. French roulette with the la partage rule cuts the edge to 1.35% on even‑money bets and is worth seeking out.

Best StakeLogic Online Casinos UK 2026 – Top Sites & Expert Guide

Craps and baccarat, while less popular on UK‑facing sites, provide reasonable odds. Baccarat’s banker bet has a house edge of about 1.06% and requires zero skill. The best casino game to win real money UK players who want a low‑cognitive‑load session is simply baccarat — bet banker every hand, ignore the scoreboard, and leave when you’re ahead.

Free Slots Win Real Money No Deposit – Is It Realistic?

The phrase ‘free slots win real money no deposit’ is catnip for search engines. It’s also the source of more player frustration than any other casino promotion. Strip the SEO polish and what’s left is a simple mechanic: a casino gives you bonus funds or a small number of free spins, often 10 to 25, on a specific slot. You play. If you win, the winnings get credited as bonus money, subject to wagering. Once you complete the wagering, what remains becomes cashable.

The maximum withdrawal from a no‑deposit bonus in the UK is typically capped at £25 to £100. That’s the ceiling, regardless of how much you win. Read the terms. If the cap is £25 and the wagering is 50x, the expected value of the bonus is a few pence. It’s still worth claiming if you want to test a casino’s interface and game load times, but framing it as a way to make money is mathematically dishonest.

Free slot tournaments have become the more interesting evolution. Casumo, for example, runs daily free‑entry tournaments on selected slots with a prize pool in the low hundreds. The top 20–30 finishers get real cash credited without wagering. It’s not a life‑changing sum, but it’s genuine risk‑free play if you enjoy the competitive angle. You’ll find these under a ‘Tournaments’ or ‘Promotions’ tab rather than on the homepage banner.

Live Casino Real Money UK – The Human Element Online

Live dealer tables are the casino industry’s answer to the question ‘can I trust the software?’ Watching a real dealer spin a physical wheel or deal cards from a shoe provides a psychological layer of fairness that RNG cannot replicate. The trade‑offs are slower game pace and minimum bet requirements; expect a £1 minimum on live roulette and £5 on live blackjack.

Evolution Gaming dominates the UK live casino supply by a wide margin. Their studios in Malta and Latvia run 24/7, with dedicated native‑speaker tables for popular jurisdictions. For UK players, the ‘London Roulette’ table streams in GBP and operates under a specific regulatory framework. Pragmatic Play Live and Playtech have made inroads with better‑lit studios and lower latency, but Evolution’s market share remains north of 70%.

Game show hybrids — Crazy Time, Monopoly Live, Cash or Crash — blend RNG multipliers with a live host. These games have exploded in revenue and also in regulatory scrutiny. The UKGC has signalled that it monitors game‑show‑style titles for gambling‑adjacent features that may appeal disproportionately to younger segments. For now, they are purely recreational. The house edge on the high‑payout segments of Crazy Time exceeds 10%, so treat them as entertainment with an entry fee, not a strategic play.

Online casino live baccarat real money UK aficionados have a quiet and lucrative corner of the lobby: the Salon Privé tables. Bet limits start at £50 or £100, but the atmosphere is slower and more refined. If your bankroll supports it, the experience is superior to squeezing into a crowded virtual table.

How to Pick a Real Money Casino in 2 Minutes

For the reader who skimmed to this section, here’s the short‑version checklist. Run through it on any new site before you deposit a penny.

1. Footer licence check. The UKGC number must be visible and start with ‘441’ or ’39’ followed by a unique string. Click through to the register entry and confirm the status shows ‘Active — Licensed.’
2. Withdrawal policy. Locate the terms page and search for ‘pending time.’ If it’s longer than 48 hours without a specified reason (such as a weekend delay), move on.
3. Bonus terms. Find what the wagering requirement applies to — deposit, bonus, or both. Note the game weighting. If table games contribute less than 10%, the bonus is aimed squarely at slots players.
4. Customer support test. Initiate a live chat and ask a specific question, such as ‘what is the maximum withdrawal from the welcome bonus free spins?’ Time the response. Anything beyond two minutes during business hours is a yellow flag.

Trusted online casino real money UK options from our carefully chosen list of operators have been subjected to exactly this level of scrutiny. The ranking table at the start of this guide reflects real‑world outcomes, not PR material.

Responsible Gambling Tools UK – What the Best Operators Offer

Depositing £200 on a Friday night is only safe if you have an exit plan. Every UKGC‑licensed casino must offer deposit limits, reality checks, and time‑outs by regulation. The best operators go beyond compliance by making these tools discoverable and customisable.

Mr Green’s ‘Green Gaming’ dashboard is the benchmark. It predicts your risk profile based on actual play behaviour and will tighten deposit limits if your loss pattern suggests chasing. It’s not a nanny‑state feature; it’s an automated indicator that functions before you hit a financial threshold. LeoVegas has a dedicated responsible‑gambling team that contacts players proactively when deposit patterns shift abruptly upward.

Self‑exclusion in the UK runs through GAMSTOP, a centralised register that blocks access to all UKGC‑licensed sites in one go. Choosing a casino that also offers the SENSE self‑exclusion overlay — which blocks gambling content and ads across devices — is a sign the operator invests in aftercare, not just the minimum required by regulation.

Session time limits are underused. Setting a 60‑minute timer forces a pop‑up that pauses gameplay and asks if you want to continue. It’s the simplest friction point that can interrupt a loss‑based spiral. Turn it on during registration; you’ll be grateful at 1am.

Best Online Casino Real Money UK 2026 – Final Recommendations by Player Type

The ‘best’ casino doesn’t exist in isolation. It depends on what you value. To wrap up this guide, here’s a condensed segment that matches operator strengths to player priorities.

Every recommendation in this final table is based on the same objective benchmarks we outlined in the ranking methodology. The real money online casinos UK players choose in 2026 will vary by taste, but the operational skeleton underneath — licence integrity, payment speed, fairness of bonus math — should be consistent across them all. Keep that skeleton in focus and you’ll avoid the branded seduction that fills casino SEO pages with identical superlatives.

What is the best online casino for real money UK in 2026?

There’s no universal best, but PlayOJO leads on fair bonus terms with instant withdrawals and zero wagering, while Betway and LeoVegas excel in live dealer quality and mobile design respectively. Your priority — speed, game selection, or bonus value — determines the top pick. All recommended operators hold active UKGC licences and have been tested for withdrawal performance in early 2026.

How quickly can I get my winnings from a UK real money casino?

E‑wallet withdrawals from the top‑ranked casinos on our list typically clear in under 24 hours, sometimes minutes. Debit card and bank transfer withdrawals take 1–5 days depending on the operator’s pending review step and the receiving bank. PlayOJO and LeoVegas currently offer the fastest average cash‑out times in the UK market based on 2026 test data.

Are real money online casinos safe in the UK?

Casinos licensed by the UK Gambling Commission are required to segregate player funds, submit to regular technical audits, and offer mandatory deposit limits and self‑exclusion tools. When you use a UKGC‑licensed operator, your funds are legally protected and the games are tested for fairness by independent labs like eCOGRA. The risk comes from playing at unlicensed or offshore sites that mimic UK brands.

Can I win real money playing online slots with no deposit in the UK?

Yes, but only within strict limits. Free‑spin no‑deposit offers allow you to win real money, though winnings are almost always capped at £25–£100 and must be wagered before withdrawal. The offers are designed to let you test a casino, not generate consistent income — treat them as a trial, not a profit engine.

What casino games have the best odds of winning real money in the UK?

RNG blackjack with standard rules offers a house edge as low as 0.5% when played with basic strategy. Certain video poker variants, such as Jacks or Better with a 9/6 paytable, reach above 99% RTP. French roulette with the la partage rule cuts the edge to 1.35%. Avoid American roulette and side bets, which inflate the house advantage significantly.

How do I verify a UK casino’s licence before I play?

Scroll to the casino’s footer and locate the licence number issued by the Gambling Commission. Enter that number at https://www.gamblingcommission.gov.uk/public-register to confirm the company name, trading address, and any regulatory sanctions. The search takes 30 seconds and is the most reliable way to avoid clone sites.