Yes, but not universally. The example I know best is Taiwan, where most large business corporations have busy websites with .com.tw domains. In Britain, the p

Yes, but not universally. The example I know best is Taiwan, where most large business corporations have busy websites with .com.tw domains. In Britain, the pattern is often .co.uk (note that .com is not the usual commercial domain there), and in Canada the comparable pattern .co.ca is a possible pattern for a business, but it looks like .com is much more common for businesses in Canada.