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Let's start with a basic understanding of Domain Age and its significance. Domain age is the age of a domain, similar to human age. When a child is born, for example, its age is measured in days, months, and years. When a domain is registered for the first time on the internet, the age of the domain begins to count. In SEO, domain age is very important; the older the domain, the higher the search engines rank it, and the more likely it is to have a significant number of backlinks. So it's a good idea to hunt for the oldest domains and register them, but keep in mind that the oldest domains are expensive.
The online Domain Age Checker is a free SEO tool created by the team at Useotools.com that determines the age of a domain with just one click. This tool is really simple to use: simply enter the domain’s URL and press the blue Get Domain Age button. And there's the age of the domain.