If you're using Afternic to list you can just list the name and not have to change nameservers. You can also forward the name to the actual listing page: Examplehttps://afternic.com/domain/yourdomain.ext
If you're using Afternic to list you can just list the name and not have to change nameservers. You can also forward the name to the actual listing page: Examplehttps://afternic.com/domain/yourdomain.ext
Sedo demands for change of your DNS if you are parking with them. You are demanded to submit a code on your registrar account if you are listing your domain with them for ownership verification.
All of them demands for change of DNS, yes! you can list your domain everywhere but you can only change DNS on only one of them. Change of DNS is just for parking.