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Decoding the Jargon

Cookie

Also called HTTP cookie, browser cookie

Performance marketingTerm

A small piece of data a website stores in your browser, used to remember things like a login, a cart or that you visited before. Analytics and ad tools use cookies to recognise returning visitors.

Example

When a visitor adds a dupatta to the cart on Meera's site and comes back the next day, a cookie lets the site remember the cart. If the visitor clears cookies, the site and her analytics treat them as a new visitor.

How you'll hear it

“Third-party cookie limits mean our retargeting audiences are shrinking.”

Don't confuse it with

  • First-party cookie: set by the site you are on.
  • Third-party cookie: set by another domain, such as an ad network, and increasingly blocked by browsers.

Related terms

Want to use this at work? AI-led PPC Excellence is aFactor's 16-week program for paid ads.

Sources

  1. Using HTTP cookies, MDN Web Docs

Checked 1 October 2026. Examples use a fictional business; figures are illustrative.

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