you can check the domain age of any website by using different tools like https://www.whatsmydns.net/domain-age. you can also check through other tools like WHOIS and many more. you can also check it through Travel In Colorado
The domain age tool provides the specific date which a domain name was registered as well as automatically calculates how many years, months, and days ago this was.

There are many reasons that you may wish to know how old a domain name is. Some of these reasons include:

To see how old a company is, often the domain name is registered at the same time they started doing business.
Determining the trust of the brand, if a domain has only recently been registered they may not have had time to build a reputation.
Older domains can sometimes have SEO benefits as they have been around longer.
Verifying trademark claims by the date a domain was registered.
and many more