Some of the things to look for in an online mlm or multi level marketing opportunity are as follows:

The price of your product or service must be fair as well as competitive with similar products on the market. Distributors should be able to purchase your product at wholesale or at a substantial discount compared to retail prices.

Commissions should be paid based on sales, not for the mere act of sponsoring other distributors.

You should not require distributors to make any investment other than purchasing a sales kit or demonstration materials at cost.

If you are considering an opportunity, make sure they at least follow the above guidelines.