I always check the RTP (refund to the player) before choosing an online casino. Reliable platforms specify RTP directly in the description of the games or cooperate with licensed providers, where the data can be checked on official websites. I also look at independent tests and certificates confirming the integrity of the random number generator. Some casinos underestimate the RTP or hide information, so it is important to choose trusted sites. Among the platforms with high RTP, I especially like 1instantcasino.com — it has transparent conditions, certified games and fair payout coefficients.