Locate Hosting Provider for Website

A few months ago I launched https://alphadalllcorp3.com/ and, at the time, set everything up through CloudFlare as the management layer. I have already combed through my email receipts and confirmations, yet still cannot determine which underlying host or registrar is actually holding the site and where the account now lives.

I need someone who can quickly trace the DNS, WHOIS, and any related records, confirm the exact hosting company, registrar, and plan in use, and then outline the precise steps I should take to log back in and regain full control.

Deliverables
• Written confirmation of the current hosting provider, registrar, and any intermediate services in the stack
• A brief, step-by-step guide that shows how I can access the correct account(s) or open the appropriate support ticket to reset credentials

Once I have that information, I can take it from there, so the scope is limited to locating and documenting.