Commutative groups, those groups in which operand order does not change an equation's result, form Abelian groups, e.g, those groups that commute: "7 × 3 = 3 × 7". When this condition is not satisified, we say the expression is non-commutative.
While doing reconnaissance against web applications, I wanted to speed up the process of finding new attack surfaces that some subdomain tools might miss.