Buying old domains refers to the practice of acquiring domain names that have been previously registered and used. These domains may have expired and become available for purchase again, or they may be actively listed for sale by their current owners.
There are several reasons why someone might want to buy an old domain. One reason is that old domains often have a higher domain authority, which can help to improve the search engine rankings of a website. Additionally, old domains may have backlinks from other websites, which can also help to improve search engine rankings. Finally, old domains may have a history of traffic, which can be beneficial for businesses looking to attract new customers.