No. Your Criteo ads are automatically optimized to be displayed to the right user at the right time. That means that ads are displayed to users at the time when they are most likely to convert – no matter which sites they visit. However, all of Criteo’s publishers are family-friendly, so your ads won’t display on sites deemed inappropriate. Since we operate on a CPC model, your ads will only be served on sites where users are likely to click and convert; otherwise we absorb the cost of unclicked impressions.