The domain age tool works in the same manner as the Domain Who Is tool, but will only display the domains age (in days), when it was first registered and when it will expire.
How to use this tool
Enter the domain name into the box without the www. or the TLD (.com or co.uk for example)and then select the relevant TLD from the drop down list. Once completed the tool will show you the age of the domain (in days) and its first registration date, or the relevant result if the domain is not registered with the relevant authority.
Go here then enter yours domain and TLD in the way it is been described above or else look at the screenshot below, then click Age to see the result.