What These Agencies Do
iTech Labs and Gaming Laboratories International (GLI) are third-party testing companies. Casinos hire them to certify that their games are fair. The agencies test the RNG code, run statistical tests on millions of hands, and verify that the payout rates match the claimed RTP.
Once certified, the casino can display the GLI or iTech Labs logo. This signals to players that the game has been independently verified.
Major regulators (UKGC, MGA, and others) require casinos to use one of these agencies. The agencies provide the verification that regulators require.
How Testing Works
The casino submits the game code to the agency. The agency reviews the code. They look for obvious flaws or intentional cheating mechanisms.
They run the game millions of times (on a test server). They collect the outcomes. They run statistical tests to see if the outcomes match expected distributions.
If the game distributes outcomes randomly, the payout rate will match the theoretical RTP. If the game is rigged to pay out less than claimed, the testing will detect it.
The agency issues a report. The report says: we tested X hands, the RTP was Y%, which matches the claimed RTP. We found no evidence of fraud.
What They Don't Test
The agencies test isolated games. They do not test the live casino environment. A game might pass certification, then be modified on the live server. The modification could change the RTP without the agency knowing.
The agencies test the version submitted. If the casino updates the game a month later, the old certification is technically invalid. Some casinos get new versions re-certified. Others do not.
The agencies do not test for fraud at the operational level. They test whether the RNG works. They do not test whether a casino operator might steal player funds, manipulate bonuses, or delay withdrawals unfairly. These operational risks are outside the scope.
The Certification Process is Not Continuous
A game certified in 2021 might be different in 2026. The certification is a snapshot. It is valid at the moment of testing. Over time, casinos update systems. The old certification loses relevance.
Major casinos get new certifications regularly. They want current verification. Smaller casinos sometimes rely on old certifications. This is a sign they might not be re-investing in their product.
Different Standards
iTech Labs and GLI have similar standards, but they are not identical. An iTech certification is not the same as a GLI certification. Both are respected, but they test slightly differently.
Other agencies exist (eCOGRA, for example) with similar but distinct methodologies.
A player should view certification as a positive sign but not as a guarantee. It means: this game has been tested and passed. It does not mean: this game is unhackable or this operator is trustworthy.
The Reality
Certification solves a specific problem: it reduces the probability that the RNG is obviously rigged. A casino paying out at 85% when they claim 95% would be caught by these tests.
But certification does not ensure fairness at all levels. A fair RNG can be paired with unfair bonus terms. Fair game math can be paired with unfair withdrawal policies.
For most players, certification is good enough. It is a reasonable safeguard. But do not assume it means the casino is entirely trustworthy. It means one specific thing: the game's RNG passed testing.
