When it comes to website, a lot of businesses tend to leave the job to the professional, delegating work to save their time and focus on the main stuff. Of course it is a good thing, because it increases productivity. However, the problem is that the information needs to come back to the business owner, especially the hosting and domain name information.
You don’t need much, just the full details of the hosting and domain name control panel, that’s all. Keep it somewhere for reference, just in case. We get a few experience about hosting and domain name, both play quite a crucial aspect for a website. It is not recommended when business owners tend to leave all information for the professional and have no back up of those information at all.
It is the same thing, when you purchase a car (hosting for example), you need to know everything there is yours and you to keep, eventhough you have no idea how an engine (mySQL for example) works, but you still keep it for yourself.
The same thing applied. If you are to purchase a hosting or domain name, make sure you have the information about them, but you can ignore learning them, because from time to time you can always pass this information to someone who knows how (a mechanic).
In any case, if you are to hire any freelancer or even, a web agency. Remember to get all neccessary information for hosting and domain name, unless of course, you already have a team to manage it.