We've all been there.

You're online, browsing for something specific (or nothing at all), and check out a few different product pages.

Next thing you know, it seems like there are retargeting advertisements everywhere you go. Whether you're on Facebook, Instagram, your web browser, etc., there seems to be no escaping an item once you've looked at it.

Retargeted advertising has been a staple in every marketer's tool belt for years, especially in the digital age where it's easier than ever to connect with consumers near and far in an instant.

The source of growing retargeting campaigns and frequent advertising is all thanks to the rise of third-party cookies.