If you want to place multiple screeners on a page, that's no problem. We've made it so that when ethnio creates a cookie, it prevents users from seeing your screener more than once. Note that this only applies for screeners under the same base domain (i.e. apples.ethn.io and oranges.ethn.io). A screener placed on two different base domains (like website.com and otherwebsite.com will display once on each website.