What is a retargeting pixel?

Related questions

1. Do I need multiple Facebook pixels?
2. What are pixels in an image?
3. Is 2mp equal to 1080p?
4. What shape are pixels?
5. What is the pixel size for 25 KB?
6. What is 4k resolution in pixels?
7. How many pixels is 13 megapixels?
8. What is a unique pixel?
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10. What is pixel number?

Tags

1. #retargeting
2. #websites
3. #traffic
4. #bounced
5. #converts
6. #remarketing
7. #brand
8. #online
9. #leave
10. #website
11. #advertising
12. #front
13. #first
14. #known
15. #after
16. #visit