Its a 3 billion French company whose sole job is to show ads for products abandoned in the cart or something you bought 6 months ago or something that their personalization algorithm suggests
Technically this is not correct.
You can achieve the very same result using different products (eg. Adroll, Exponential Interactive) or even using Google and Facebook natively.
Client side re-targeting has two pieces to it: a "segment" code placed on the product page (a marker showing you have interest in this particular product) and a "burn" code placed on the conversion page (that removes the previous marker, so they can stop showing you ads for this product once you bought it).
One could add the "burn" code every time the "segment" code is detected. On some networks that may even result in an affiliate payout.
OVH is only a hosting company. Low margin business. They have no software side, they don't make billion of dollars, they don't run thousands of projects.
Its a 3 billion French company whose sole job is to show ads for products abandoned in the cart or something you bought 6 months ago or something that their personalization algorithm suggests