When a user visits, a small snippet of code (remarketing code) on your website adds them to a remarketing list. Then when they visit another website that uses the Google Ad network, they are served your ad. Google allows you to customize who sees your remarketed ads.
How is remarketing done?
Using remarketing, you can show Google ads to your previous site visitors while they browse the vast number of Google partner sites in the Google Display Network. Google recommends that when you are starting your first remarketing campaign, you begin by targeting everyone who viewed your homepage.
What remarketing is and how it works?
Remarketing, also known as retargeting, is a digital marketing tactic that enables brands to display advertising to users that had previously visited the brand's site. Remarketing ads can substantially increase total website conversions by targeting relevant previous users.