Whois search results should say "timeout" if there is a timeout
If a customer uses WHMCS to search for a domain name and the whois server doesn't respond in time, it currently defaults to "Unavailable".
Most people would think this means the domain name is taken, but in fact it's just that the whois server is busy. We're seeing this problem sometimes with .eu domains and the new TLD extensions that use the whois.donuts.co whois server.
If the whois server doesn't respond in time, there should be a different message such as "Timeout - please try again".