GLI - Gaming Laboratories International

GLI - Gaming Laboratories International

Over the past 20 years, online gambling has become a fun and exciting form of entertainment for adults all over the world. The idea that an individual can sit in their living-room and enjoy a couple of hours of playing slots or blackjack has a great deal of appeal for people who just can't get motivated to get dressed and travel to a land-based casino.

Of course, anything that one does over the Internet demands a certain amount of scrutiny. For gamblers, they want to feel they are being treated fairly and that their personal and banking information is well protected. Therefore, it is incumbent on the online casino operator to take all the steps necessary to make sure players get the sense of security they deserve for their patronage. GLI - Gaming Laboratories International, formerly known as Technical Systems Testing (TST), is one of the largest independent gaming testing and certification laboratories in the world.

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About GLI - Gaming Laboratories International

The Random Number Generator

When a player is present in a land-based casino, they are able to see the roll of the dice and the turn of a card. From watching the process with their own eyes, they can logically induce that the laws of probability are allowed to work as intended and that the results are fair and free from manipulation. When playing a land-based slot machine or any online game, they are giving the casino their blind faith that the games are fair. In fact, these games are controlled by a Random Number Generator (RNG). The RNG is a programming feature that tells the gaming software that all the possible outcomes that exist for an action must be in play with each roll of the dice, spin of the wheel or turn of the card. Furthermore, the RNG must be free from possible manipulation in order for the game to be classified as fair and safe.

Game Auditors

In order to communicate with players that the casino's games are fair, the operators and gaming software developers must submit each game to an independent testing lab to be certified as "fair and safe". The testing labs are responsible for running an intricate number of logistics on each game's RNG as a means to test the software's randomness. If the results fall within specific generally accepted guidelines, the game is certified as safe and sound. If not, the game is sent back to the developer for reprogramming. After the initial audit, periodic surprise audits are required to be performed in the future.


Almost all reputable licensing and regulatory gaming agencies require online casinos to obtain this certification. Most of these agencies provide a very short list of authorized testing labs and/or auditing companies. One of the most popular and reputable testing labs found on pretty much everyone's short list is GLI - Gaming Laboratories International. Formerly known as TST, this company has long been a favourite testing site for major software developers like Playtech. When players see that a site's games have been certified by Gaming Labs, they should have full faith that the games are functioning in a fair manner.

The Company's History

Technical Systems Testing (TST), founded in 1993, was acquired by GLI and part of the Gaming Laboratories Inc (GLI) group of testing companies. The GLI group has one purpose: to test electronic game machines and gaming software for fairness. Moreover, the company was one of the first testing labs to be used by the online gaming industry. As a result, the company has testing labs located all of over the world in order to provide prompt and thorough results for operators and developers no matter which jurisdiction thay may be operating within. TST operated independently until 2010, the year when they joined the GLI group. They are proud of the company's proprietary methods and ISO/IEC 17025 accredited quality systems that provide results that have earned them the trust of the gaming industry since the company's inception.


Next time you play at an online casino, look for the Gaming Labs Certified logo in the footer for a sign of quality and assurance.

Click to visit GLI - Gaming Laboratories International official website.

Posted by CCJ Team