User interface is nice, it's easy to find anything on this website but there are some things that I want to suggest you:
1. It's a little bit hard to understand where do I have to enter the seed hash and hash (in Bitsler's case). Bitsler has two server seed, one is hashed and another one - revealed. That's at least on old bets.
2. Officially, Bitsler has Provably fair verifier on Boom, Dice, Dicey 7's, Blast, Cara Y Cruz, Multicolor, Roulette, Twist, Fruitsler Slots, Crypto Thugs, Blackjack, Baccarat, Hilo, Plinko, Keno, Flash Roulette, Chest and Hourly Lottery.
But on your website, I can only see Dice, Cara Y Cruz, Multicolor and Roulette.