@unakade Welcome to the forum!
FYI, what is shown above the username is the “Name” of the vault item, which does not have to correspond to the website address. Although the item name chosen by Bitwarden (when you use the “+” button or the prompts to save a new login) defaults to the website domain, you can edit the item name to be anything that you want.
Thus, you can make the items more easily distinguishable by customizing their “Name” values. For example, if you have two accounts on amazon.com, then you can change the default items names from www.amazon.com to something like what is shown below:
