Finding the Source of an Attack

I have a launch site up and running for my web-based business.
I have not advertised it anywhere and there are 0 links to it on the web yet.
Competitors found out about it yesterday and there were attacks almost immediately after that. They’re coming from different IPs and I feel like these guys have commissioned an attack against me. I have the IPs that the attacks are coming from. I was wondering if there is a way to find where/if a “call for hack” has been posted.