I wanted to do something very simple, considering it’s the last year of the first decade of the 3rd millennium (Gregorian calendar, of course). Namely, to check the status of an Air France flight from Miami to Paris Charles de Gaulle.
I typed airfrance<Ctrl+Enter> in the address bar, which brought me to airfrance.com, where I clicked “USA Site,” which in turn redirected me to airfrance.us. I don’t think this is the best way to do things, but that’s just a minor complaint. Another minor one: it doesn’t automatically redirect on subsequent visits (hint: set a cookie!).
I had this scanned itinerary to go on (ignore date, AF95 flies daily):

I got to the flight status page:

My first attempt was af95 (the fact that I’m counting attempts should give you an idea of what’s to come). I hit search, without crossing fingers:

No info! This is quite misleading. What exactly do you mean you have no information? Is it lost in your system, is it top secret, has the flight disappeared?