About Us

Online Casinos is an independent research site built for US players trying to work out which online slots sites are worth their time. Our focus sits on the slot side of the industry specifically — welcome offers built around spins and deposit matches, RTP and volatility, and how quickly a slot win actually turns into cash in a bank account. This page explains who puts the site together, how we judge the operators we list, and what we do and don't take responsibility for.

Why a site focused on online slots

Slots make up the largest single category of play at almost every US-facing casino site, and they're also where the fine print matters most: wagering requirements are usually calculated against slot play, game weightings vary by title, and welcome bonuses are frequently pitched in slot spins rather than table credit. We built Online Casinos around that reality rather than trying to cover every casino vertical equally. Where a page needs to go deeper into a related topic — offshore options for players outside the licensed US market, for instance — we point to it rather than duplicating it, such as our page on non-GamStop casinos.

Who writes this and how often it's checked

Content on Online Casinos is researched and written by Quinn Hartman, drawing on publicly available terms and conditions, licensing registers, and payout policy pages published by each operator. Pages are reviewed and refreshed on an ongoing basis; this page was last fact-checked on Aug 27, 2026. We don't claim to have deposited, played or withdrawn from the sites we cover — our reviews are based on documented terms, published RTP figures where operators disclose them, and licensing information, not on hands-on testing.

How we assess the operators we list

Every operator that appears in our rankings is checked against the same criteria before it earns a place. None of this buys an operator a better position — commission from any operator never determines rank.

• Licensing and regulation: whether the operator holds a recognized gambling licence and what oversight that licence implies for player protection.
• Bonus terms: wagering requirements, game restrictions, expiry windows and maximum withdrawal caps attached to welcome offers, read in full rather than summarized from marketing copy.
• Banking: which deposit and withdrawal methods are supported, what each typically costs, and what processing times operators state for withdrawals.
• Game fairness: whether slot titles are supplied by studios that use certified random number generators and whether RTP information is published.
• Security: whether the site uses HTTPS encryption and what it states about how it protects account and payment data.
• Support: what channels are available — live chat, email, phone — and how accessible they are outside claimed peak hours.

The offer table above this page reflects that assessment. Raging Bull, Uptown Aces and Ignition currently sit at the top of our list, but a high position is not a guarantee of outcome for any individual player — slot machines carry a built-in house edge, and RTP is a long-run statistical average, not a promise about any single session.

A note on the offers you'll see listed

Welcome bonuses shown on this site — for example, Raging Bull's 410% match up to $10,000 plus 50 free spins, Uptown Aces' 600% new-player match, or Ignition's 300% match up to $3,000 — are headline figures published by the operators themselves. Every one of them comes with conditions attached: wagering multipliers, eligible games, deposit minimums and time limits to clear the offer. We summarize these where we can, but the operator's own terms page is always the final word before you claim anything, and we'd encourage reading those terms in full first.

Eligibility and where this site applies

Online Casinos is written for adults in the United States. Online gambling law in the US works state by state: some states license and regulate real-money online casino play directly, others permit only certain forms of gambling, and some prohibit it outright. Where legal online casino play exists, players generally need to be at least 21, physically located within a state that permits it at the time of play, and — depending on the state — registered with an address in that state. Nothing on this site should be read as confirmation that online slots are legal in every US state; that depends entirely on local law, and it's the reader's responsibility to check their own state's rules before signing up anywhere.

Where responsible gambling fits into what we do

We treat responsible gambling as part of the review process, not an afterthought. Where an operator publishes self-exclusion tools, deposit or session limits, or links to state and national support services, we note it. If gambling has stopped being enjoyable, or is affecting your finances or wellbeing, that's a signal worth acting on rather than working around. We've put together a fuller guide to setting limits and finding support on our responsible gambling page.

What we don't do

We don't process deposits, withdrawals or bets — Online Casinos is a comparison and information resource, not a gambling operator. We don't guarantee winnings, wagering outcomes or that any bonus will suit every player, and we don't invent licensing status, payout speeds or terms that an operator hasn't published. If a detail isn't confirmed, we say so rather than filling the gap with a guess.

Get in touch

Questions about a review, a correction to flag, or feedback on an operator you've used yourself — we'd like to hear it. Full contact details are on our Contact Us page, and our full site terms are set out on the Terms and Conditions page.