Step-by-step guide on how to remove websites, YouTube channels, and apps from the list of placements where your Smart Campaign gets displayed.

1. Google Ads: How to exclude websites
from Smart Campaigns
Tool and Settings > Shared Library > Placement Exclusion List
If your Smart Campaign is displayed on irrelevant (or harmful) websites, click on
Tool and Settings, then on Placement Exclusion List (under Shared Library)
Create Placement Exclusion List
In "Name List" add the name of your new exclusion list.
Add Placement Exclusion
Type in Search the name of the site you want to exclude. Alternatively, click on
one of the list options (YouTube channels, YouTube videos, Websites, Apps, App
Categories) and then type the name of the site you want to exclude.