Atlantic City in the 1980s was a place you had to know. The Resorts, the Showboat, the Atlantis when it was new. The casinos had regulatory oversight, but it was hands-off. New Jersey Division of Gaming Enforcement would audit a casino once a year, maybe twice. The testing was basic.
I used to sit at the Resorts sports book, watch the lines move, watch people place bets. The confidence in the numbers came from reputation. The casino had been around long enough. The regulators had been around long enough. Trust was built on time, not on testing.
Online gambling couldn't operate that way. Nobody had time built up. Nobody had a track record. So the industry invented independent testing.
The Emergence
Gaming Laboratories International was founded in 1997 in Las Vegas. They started because Nevada casinos needed to be tested, and the state realized that third-party oversight was cheaper than staffing a full-time audit department.
iTech Labs came later, around 2003, founded in Sydney. They focused on the Australian market initially, then expanded globally as online gambling spread.
Both companies filled the same gap: the market needed independent verification that random number generators were actually random and that house edges matched published claims.
Without these companies, online gambling could not have matured. Regulators would have had no basis for licensing operators. Players would have had no basis for trusting outcomes.
What They Test
GLI and iTech Labs test three categories of casino games: RNG-based games (slots, blackjack, roulette, video poker), live dealer broadcasts (card dealing, wheel balance, video feeds), and sports betting platforms (odds calculation, liability management, settlement accuracy).
For RNG-based games, they examine the random number generator source code. They run the generator through statistical tests (chi-squared, serial correlation, entropy tests). They verify that output distributions match expected probabilities. They test the shuffle algorithm on card games. They verify that each possible outcome appears with the frequency claimed by the game design.
For live dealer games, they inspect the physical equipment (cards, wheels, tables). They verify that wheels are balanced. They check that cards come from factory seals (no marked decks). They watch broadcasts for integrity (no retakes, no ability to edit outcomes retroactively).
For sports betting, they verify that odds are calculated correctly and that the platform cannot manipulate line moves in real time.
The Certification Process
A certification takes weeks. The testing company receives the game code. They decompile it if needed (they have the legal right to do this as part of a licensing review). They run millions of samples through the RNG. They check the results against theoretical probabilities.
If the RNG passes, they generate a report. If it fails, the game gets rejected. The operator fixes the code and resubmits.
This is expensive. Operators pay iTech Labs or GLI between 10,000 and 50,000 pounds per game, depending on complexity. A major operator with 500 games might spend hundreds of thousands on testing annually.
But the cost is non-negotiable. Regulators require it. And players, over time, came to trust the seal. You see "Tested by iTech Labs" on a casino's site, you know an independent third party verified the fairness.
Regulatory Integration
The UKGC requires all licensed operators to submit games to approved testing agencies. The approved list includes iTech Labs, GLI, and a handful of others. The operator can't just pick any testing company. It has to be pre-approved by the regulator.
The Malta Gaming Authority has a similar system. Curaçao eGaming is less stringent, but even Curacao-licensed operators often submit to testing voluntarily because it's good PR.
Regulators can request testing reports at any time. If a regulator suspects an operator of game manipulation, they can demand that games be re-tested independently. The testing company will re-run the analysis.
The Confidence Layer
Here's what the testing agencies actually provide: confidence that you're not playing a rigged game. They don't guarantee you'll win. They guarantee that the odds you were quoted are accurate.
When I sat in Atlantic City, I trusted the games because the casino had reputation. Online casinos don't have 30 years of reputation. Instead, they have testing. It's a proxy for trust.
Over time, the testing became industry standard. Now, a casino without third-party testing certification is viewed with suspicion. Players won't touch it. Regulators won't license it.
Modern Reality
As of 2026, iTech Labs and GLI together test more than 80 percent of regulated online gaming software. They are the gatekeepers. Their work is less visible than it was ten years ago because the market treats it as baseline. Of course games are tested. How else would they be licensed?
But if these companies didn't exist, the entire structure of regulated online gambling would collapse. There would be no independent verification. Operators could claim whatever RTP they wanted. Players would have to trust blindly.
The Resorts in Atlantic City earned trust through decades of operation. iTunes Labs and GLI compressed that trust into a testing report. It's not the same, but it's functional. And for an industry that emerged from nowhere in the 2000s, it's been sufficient.
When you play at a licensed operator, thank the testing agencies silently. They're the ones who made it possible for you to have any confidence in the numbers at all.
