Just as an FYI, I have also found that maps.google.com has stopped functioning in Safari. Version 7.1 (9537.85.10.17.1) is what I have with the latest OS.
The base map appears but typing anything, clicking, etc. yield no action. I CAN zoom in and out. A yellow box displays Loading... but nothing happens when trying to do an actual search for a location. The text appears but hitting Enter or clicking the Search icon do nothing.
My Safari has been reset before and it really does not make sense to me why DNS would be involved in hitting Enter on text in a box.
One thing I will check is that I have a security setting that prevents Flash from running on web sites automatically. Most new pages that try to run flash show a "Trust?" dialog box but no such dialog appears in the case of the maps page. In the meantime the same maps do work in Firefox.
I am successfully using http://maps.bing.com in Safari.
Imran