Tools for figuring out what a domain is worth and for making sure the transaction goes smoothly once you've agreed on a price.
NameBio
A database of historical domain sales. Essential for estimating what a domain might be worth — search for similar domains and see what they sold for. A paid membership is required for full access, but it's worth it if you're buying or selling regularly.
Escrow.com
The standard for secure domain transactions. The buyer pays Escrow.com, the seller transfers the domain, the buyer confirms receipt, and Escrow.com releases the payment. Affordable, reliable, and protects both sides.
DomainAgents
A semi-automated brokerage service. You tell them which domain you want, they find and contact the owner, and facilitate the negotiation. They charge a small fee plus commission. Useful for domains that would be nice to have but aren't worth your time to research and pursue yourself.
Aftermarket.com
Useful if you're managing multiple domain names across different marketplaces. It keeps your listings organized and automatically creates landing pages for domains you want to sell.