Seeing how Communicator 4.75 came out in Sept 2000, I guess this site is really making a go for authenticity, even on non-existent point releases in '99. [0]
In a way, I feel amazed that it even recognized that TLD.
A big problem for machines of this vintage is HTTPS everywhere. Google still works pretty well and will let you access it over HTTP, but the rendering of the search results is a bit janky.