WTF is piggybacking?

This article is a WTF explainer, in which we break down media and marketing’s most confusing terms. More from the series →

Piggyback rides can be fun for children. For website operators, not so much. 

Piggybacking — also known as cookie-syncing — is how an ad tech firm can drop a third-party cookie on a website’s visitors without being granted access by the website via another ad tech firm that the website has granted access, as covered in the explainer skit above. 

An issue with this third-party tracking daisy-chain is that it makes it difficult for website operators to rein in outside companies’ abilities to collect information about their audiences, which risks putting the operators in privacy regulators’ crosshairs.

More in Marketing

D+ Research: Brands expand creator marketing strategies

Many are partnering with creators to help drive seasonal campaigns, support product launches and, in some cases, even help develop products

Illustration of two men fighting in an alleyway.

Ad Tech Briefing: Google is morphing from media to tech, adland braces for impact 

The entity formerly known as DoubleClick remains the runt of the Alphabet litter, while its cloud business continues to go from strength to strength.

OpenAI is already building the org chart of a mature ad business

Two job postings on its careers page suggest OpenAI wants third parties, not just its own sellers, to sell its inventory.