To sell your domain, start by determining its value through appraisal tools or by comparing it to similar domains, considering factors like length, keywords, and market demand. Next, choose a reputable sales platform, such as GoDaddy Auctions, Sedo, or Flippa, and create an account, ensuring you complete any necessary verification and link your payment method. List your domain with detailed information, including its name, asking price, and any relevant statistics like traffic or SEO rankings, and decide whether to set a fixed price or start an auction. Promote your listing on social media and relevant forums to attract potential buyers, and be prepared to negotiate offers. Once you secure a buyer, follow the platform's instructions for transferring the domain and receiving payment, typically using an escrow service for security. After payment is confirmed, initiate the domain transfer process to the buyer’s registrar to complete the sale.