Much like a fine red wine or aged cheese, a domain name –specifically, the search ranking of the domain– improves with time.
What does this mean for the development of your online strategies?
Purchase your domain as soon as you decide on the name.
Though it may be months before all components come together and the site goes live, time is on your side starting the minute your domain comes into existence.
All you need to do is choose your keywords and park your domain name to let it ripen while the site development and content is being prepared.
In the case where you choose to purchase a pre-aged domain (which was purchased and parked to age), a domain age checking tool such as Search Engine Genie allows you to check the age of any domain.