This article describes how to automatically pre-populate the domain name in Citrix Director logon page.
Citrix Director
Full access to the path: C:\inetpub\wwwroot\Director
Complete the following procedure to automatically pre-populate the domain name in Citrix Director logon page
Edit LogOn.aspx file.
Replace <asp:TextBox ID="Domain" runat="server" CssClass="text-box" onfocus="showIndicator(this);"
with
<asp:TextBox ID="Domain" Text="domain.local" readonly="true" runat="server" CssClass="text-box" onfocus="showIndicator(this);"
Where domain.local is your actual domain.
For Director 7.6.3 replace:
<asp:TextBox ID="Domain" runat="server" with
<asp:TextBox ID="Domain" Text="mydomain" readonly="true" runat="server"
Start Director. You can now notice that your domain field is already filled in:
Citrix Documentation - Monitor environments with Director