who knows what is black hat seo good techniques?
Black hat? You should give us more details in order to be able to help you out. When it comes to SEO, there are countless techniques. A good option would be to contact someone from https://www.clientverge.com/ in order to have a general idea about this matter. Of course, everything is related to a budget. If money isn't a problem, then you're good to go and you have nothing to be worried about. You can even do SEO by yourself if you manage to learn the mechanism behind all of this. It's going to take a while, but you're going to acquire new knowledge