What’s a Domain Host?
No website exists without a URL or a way to get to that website. When a user opens a browser they need an address to enter to reach their destination website. That primary URL address is the domain name, i.e. mybusinessname.com. To create a domain you must first create an account with an online domain host management company and purchase your domain name (URL) and then point that domain to your website. Sometimes companies will offer both domain and website hosting services together.
Find your Domain Host:
If you are not sure what company currently provides your domain hosting services you can look it up anytime. You can refer to the whois lookup (https://whois.icann.org/en/lookup?name=) page provided by ICANN, they are a non-profit organization that gathers domain information to help you in case you need to look it up. All you need to enter is your website URL. You will be taken to a page like this:
There you will be able to search for the company who hosts your domain.