What does the 'Do Not Track' HTTP header signify?

The 'Do Not Track' HTTP header signifies a user's preference against being monitored by websites and online services. When a user enables this feature in their web browser, they are signaling their desire for privacy and asking that their browsing behavior not be tracked or collected for purposes such as targeted advertising or analytics.

This preference is intended to empower users with more control over their personal data and privacy online. Although compliance with the 'Do Not Track' request is not legally binding, it serves as an important communication tool between users and websites regarding privacy preferences.

In contrast, a request for data to be captured involves actively seeking information, and explicit user monitoring refers to tracking user activity with the user's consent. A directive to avoid cookies for all users is not what the Do Not Track header expresses; rather, it is focused on tracking preferences specifically. Thus, the essence of the 'Do Not Track' header is rooted in user consent and preference regarding monitoring activities.