Do you wonder what caused similar products or services to show time and again even when you had just once visited the page? Yes, you guessed it right. This is retargeting by ads where a tag or pixel gets attached to your browser cookies. It causes similar product show again to the same visitors.
The result is a sequence of online ads diligently following the potential customer, reminding them of the product or service and telling them to close the deal. Visitors can either be targeted by the Google ads or any of the social media ads like Facebook ads.