What happens with a domain name when the "Whois registration-expiration" date is reached?
I'm interested in a domain-name (.com) that is about to expire. What happens when the registration-expiration date is reached?
After the expiration date is reached, usually the registrar (the entity that takes care of registering that domain and who associates it with you) keeps the domain on hold for 1~2 months (can be more or less), having you (the current owner) as the priority-subscriber/renewer during that time.
In other terms, the domain is not yours anymore (for instance the top-level-domains DNS delegations are not directed to your DNS entries) but only you may register/renew it.
After that grace period is over, registrars follow one of the following scenarios
the domain is back to Nature, does not belong to anybody and anyone can register it from any registrar (the domain may simply be deleted)
while the domain can be registered by anyone, the domain is kept on hold by the registrar who knows that domain is likely to be registered by someone else soon
some registrars do that: if the domain is considered 'hot', after the grace period they may open a kind of auction, leaving the domain to the highest bid. For instance if you own
nature.com
and you don't renew it, it is likely that such an interesting domain will find plenty of buyers, and the registrar may want to make the highest amount of money from it.