Welcome to the forum! I checked the website, overall it leaves a good impression, provably fair is great, the interface is nice, not annoying as some websites do.

However, there are several things I think you should consider improving. First, since you only have one game, maybe consider making it a little more graphically entertaining, like add something that will move and crash instead of just having the line going up, add some effects, that would be more attractive.

And second, the more important thing, adjust the multiplying axle so that it would be easier to track how far up the line goes (maybe consider moving it to the right side. Good luck with your website!