Is there a web site to see the will and the distribution of assets of a deceased person ?

I've never aren anything like that. Only thing I know that comes close would be public auctions of estates.

Probate (the type of court action dealing with decedents' estates) is handled by state courts in the U.S.. You should be able to access this information by checking with the court clerk at the courthouse where the decedent ("deceased person") lived.

Assuming, however, that a probate case was filed.

Also, in some places, when one executes a will one can deposit it with the court, so it will be available when that person dies. In that case, you would have to be the designated executor, with a death certificate in hand, to be able to see the will.

If filed, it is done though probate court, I do not know any that provide that information online. It can be seen normally in person at the court house.

While probate court records are public records, I don't know of any that make the records available on line. If they are available it would be specific to that local probate court which is on the county level.

Usually, only someone with an interest in the will can see the probate court records.