Hello @ALJimenez
If I am understnading correctly, you would like to have the page you built on HubSpot to load when a user types in or clicks mycompanydomain.com
First step would be connecting your domain to HubSpot - a comprehensive article can be found here: Connect a domain to HubSpot
Please note that once you connect your domain to HubSpot, if will stop functioning entirely on any previous platforms. Meaning, if you had a website built on another system, all of the pages will be disconnected from there and only work on HubSpot.
Also, if you choose to connect your domain with the “www” subdomain, then you will not get IP addresses, but a different DNS record to connect instead.
If you currently do not have any domains connected to HubSpot, connecting your main domain initially should automatically make your homepage load on the connected domain.
Happy to clarify or answer any other questions about this!