What is the ruling on selling educational courses on a website that takes a percentage of the profits, varying according to the method of marketing and attracting the customer?

There is no objection to dealing with the aforementioned website in selling educational courses or other items. The website's commission, which is a percentage of the profits in exchange for advertising on it, is permissible according to the preponderant opinion of scholars, and this is the madhhab of the Hanbalis. Ibn Qudamah stated in Al-Mughni the permissibility of giving one's cloth to a tailor to cut it into shirts and sell them, with the tailor receiving half of the profit in exchange for his work.