Running Safari Version 3.2.3 (5525.28.30)...
Months ago I noticed that I did not have to type http://(www. if necessary) into my Safari address bar, because Safari took care of that on its own.
Just the other day, however, I noticed that Safari also enters .suffix. (It queries Open DNS [I sometimes see an "opendns" or some-such URL flash cross my address bar.] and enters .com [default]...other suffixes if there's no .com [but I've no idea what "default hierarchy" it uses].)
As an experiment, I d/l'd Firefox 3.5.5 (the latest version), and found that it only takes me to
Open DNS.
Have I stumbled on an unheralded Safari feature, or am I merely ages behind the times?
Edit: I just found this at Safari Help/Typing webpage addresses (URLs):
To avoid needless typing, type the key part of the address and Safari will fill in the rest. For instance, to visit “http://www.cats.com,†type “cats.comâ€.
(Emphasis added.)
So something's...well...something.