Specifically, the "tm" stands for . It is a legacy routing path used to direct users to their organization's customized learning portal. Unlike standard Udemy (where individuals buy courses one by one), Udemy Business is a subscription service used by companies and governments to train their employees.
When you see tm.udemy.com , it usually implies one of two things: tm.udemy.com
is a subdomain used by Udemy for Udemy Business (formerly known as Udemy for Business ). Specifically, the "tm" stands for