Sometimes my Facebook pixel detect new domains sending data, which have a bunch of numbers followed by shopifypreview.com (e.g., xxxxxx-sq-28347072600.shopifypreview.com)
When I click, it shows my website.
Facebook says in the About Facebook Pixel Traffic Permissions
Reasons why you might see pixel events coming from unfamiliar website domains include:
I already have entered in the allow list the generic domain shopify.com.
Does anybody knows WHY these links get created and IF should I allow them or safely or remove them (since maybe I can't know if someone else is using my Pixel ID)
I really appreciate any help you can provide.
Shopify Preview links get created from within the admin when you preview the theme. Excluding them from the pixel would mean you're basically reducing staff's input into the pixel.
You want your ads to exclude a type of list like "emails to exclude" made up of your internal staff Facebook email addresses and problem customers to help performance, which you can easily update from within website custom audiences and not reset any learning phases.