RNG Audits & Fairness Certificates (eCOGRA, iTech Labs)

A casino RNG audit is an independent lab's test that the random number generator behind a game gives unpredictable, unbiased results and that the game can return the RTP it was built for. It checks games, not the cashier: no certificate shows how fast a casino pays. In Canada, Ontario and Alberta write lab certification into the rules of their regulated markets. This part of our casino payout guides explains what labs test and how to verify a seal.

What a Casino RNG Audit Tests

An RNG audit covers the random number generator that picks each result and the game math that sets the return. eCOGRA, a testing lab, lists these RNG checks:

• A review of the RNG's source code.
• Statistical analysis of its output over many iterations.
• A check that seed values are adequately unpredictable.
• An assessment of resistance to common attacks and exploits.
• A review of the hardware and software it runs on.

GLI, another lab, publishes a standard many regulators start from. GLI-19 version 4.0, for interactive gaming systems, revised on 3 November 2026, sets measurable rules:

A standard is not law by itself: GLI says any regulator can adopt it in whole or in part. On the RTP side, GLI calculates a game's return by evaluating or simulating every possible combination, and eCOGRA checks whether each game's payout falls within a statistically acceptable interval based on its volatility.

Who the Casino Test Labs Are, From eCOGRA to Gaming Associates

Each lab describes its work on its own website. We read their pages in November 2026:

eCOGRA awards its seal to operators that comply with its Generally Accepted Practices, while GLI's mark goes to customers whose products it has certified. eCOGRA, GLI, BMM and Gaming Associates also appear on Ontario's list of registered labs.

What a Monthly Casino Payout Report Shows

A certificate says a game can pay its designed return; a payout report shows what games actually paid. eCOGRA calculates actual RTP by dividing win by turnover and offers approved operators monthly return-to-player reports for every casino game category. A report worth trusting states:

• The lab's name, with a link to its own copy.
• The casino site the figures cover.
• The month or period measured.
• The return for each game category, not one pooled figure.

As a model, a month with C$10,000,000 staked and C$9,620,000 paid back shows 96.2%; the C$380,000 difference stayed with the casino. GLI compares such live data with theoretical values and reports whether each game stays within statistically acceptable bounds. A short month can drift without any fault, so the bounds matter more than the headline.

Game Testing Rules in Canada: AGCO Labs and AGLC Certification

In Canada, Criminal Code section 207 lets provinces conduct and manage gambling; offshore casinos hold no provincial licence, so no province checks their games. Two regulated markets write lab testing into their rules:

Note that in Ontario, the AGCO lists eight registered independent testing labs: BMM North America, Eclipse Compliance Testing, eCOGRA, Gaming Associates Europe, Gaming Laboratories International, Global Lab, Riskcherry and Quinel. Its Registrar's Standards for Internet Gaming, last updated 14 May 2026, require:

• Approval or lab certification before a game or RNG goes live (Standard 4.08).
• Monitoring and testing throughout the life of the gaming system (Standard 4.09).
• Outcome odds that stay independent of game history (Standard 4.24).
• A way to confirm that installed software is the certified software (Standard 5.17).

In April 2023 the AGCO issued penalties totalling C$70,000 to three operators over games allegedly neither approved nor certified. Note that in Alberta, AGLC requires suppliers in the regulated market to be registered, to have their technology certified by an accredited testing facility and to connect to its centralized Self-Exclusion Program.

How to Verify a Casino Fairness Seal

A seal counts as evidence only when it leads back to the lab. iTech Labs, for example, issues a logo, a linked certificate and a hot-linked original certificate. Check any seal in five steps:

1. Click the seal on the casino or game page.
2. Confirm that the page opens on the lab's own website.
3. Match the site or game name on the certificate.
4. Read the scope, whether RNG only, games or an RTP audit.
5. Check the issue date or the period covered.

Scope matters because an RNG certificate does not say which game versions run on it: Hacksaw Gaming lists Wanted Dead or a Wild at 96.38%, 94.55%, 92.33% and 88.42%. Checking the info screen is how you find the highest RTP casinos. What a seal does when clicked shows how much it proves:

eCOGRA says labs may run spot checks or re-certifications, and the iTech Labs FAQ does not say whether certificates expire, so an old date is worth questioning. eCOGRA's seal page describes no public lookup; if a seal opens no certificate, ask the lab.

What a Fairness Certificate Does Not Cover

A game certificate answers questions about the game, not about what happens after you press withdraw:

None of the lab pages we read lists withdrawal speed, caps, bonus terms or identity checks among the items tested; those rules sit in each casino's terms. A licence is a separate question: knowing how to check an online casino licence tells you who supervises the operator, if anyone does.

What RNG Audits Mean for Your Withdrawals

A certified game can still sit behind a slow cashier. In our October 2026 test withdrawals, all 17 paid out, with a median of 8 hours from request to money received:

• Bitcoin paid in 25 minutes to 1 hour across three tests.
• Skrill, Neteller and MiFinity paid in 5 to 14 hours across ten tests.
• Interac and Trustly each paid in 1 day, one test per method.
• Visa paid in 2 to 3 days across two tests.

Timing depends mostly on the casino's approval queue. Our Payout Score leaves seals and payout reports out and weights 60% tested payout speed, 20% withdrawal limits and 20% bonus terms; see how we test casino payouts for the method. A casino whose test paid in 5 hours, with a C$10,500 monthly cap and 35x wagering on the bonus, scores 8.0.

Fairness Seal or Payout Evidence: What to Check at Any Casino

Here is the evidence any casino can show you and what each piece proves:

Online casino play is for adults: the minimum age is 18 in Alberta, Manitoba and Quebec and 19 in the other provinces. Terms and conditions apply to every bonus. For help lines for every province, see our responsible gambling page.

What a Casino RNG Audit Can and Cannot Tell You

A casino RNG audit shows that a game's results are unpredictable and that the tested version can return its RTP. It cannot tell you which version your casino runs or how fast you will be paid: our October 2026 tests took 25 minutes to 3 days. Payout speed, caps and wagering decide the best payout online casinos, not the seal in the footer.