Domain Auction sites allow you to buy, sell, bid & search domains listed for sale by owners of the domain. Most domain auction websites allow you to either bid on a listed domain or buy a fixed price domain.
This websites will also allow an owner to list online business with domain for sale. In such cases some auction website will do a free website appraisal that can be viewed by the buyer.
When a buyer interested to buy a domain or an online business the auction website will always act as a mediator for the buyer and seller to make sure the transaction is smooth. The auction website will take a small percentage of the total transaction amount as a service charge.
If you want to sell your domain or online business you may need to consider the below auctions websites where you can list your domain or online business.