Some secondary domains like yourdomain.uk.com will not get added to Watch My Domains SED v4 by default. This is because the application will assume that you want to add UK.COM and that the yourdomain part is a subdomain (which it really is).
In such cases you can force add the domains by wrapping them in square brackets (). For example,
You can also make some changes to the domain suffix list in Watch My Domains SED to permanently support such domains.
The public suffix list is used by Watch My Domains to properly identify the effective / registered domain name. You can acces this from the administrive settings panels.
After you add these second level domains (uk.com, bd.com, etc) your entries will be parsed as you want them to be. You can also verify the parser by typing in your test entries under the ‘Test Domain Parser’ box.