"qa" is a very common term, has very clear meaning, has all main TLDs already taken, is a super short name, very easily passes the radio test, is memorable, is very specific, is catchy, is very easy to pronounce, has high cost per click, has high overture, has numerous searches per month, has great business applicability, is very relevant for recreational activities, with perfect lifestyle capabilities, is a natural scientific fit, is a tremendous choice as a shopping domain, and it is perfect in the technology space.