By all means post things like that here. Not sure how they would perform in a dome, but I...and several others have used them for the hearth. These are perfect for somebody wanting to build a Clay/Cob oven.....on a shoestring.
They are the same type of brick (or at least look the same!) as the ones I have used for my dome. I've had a few firings so far nd they seem to be holding up just fine, so I guess the bricks in the listing should perform fine too.