Returned to the client (as a web bundle) and saved in the browser for later rendering.A contextually targeted ad request that does not receive audience data (such as a “floc” defined below).An in-browser auction to choose between the two ads with network-defined bidding logic.If that sounds complicated, it is. Turtledove appears to be the rawest spec and most likely to change significantly over the next two years. Category targeting "Floc” suggests a path for the browser itself to use browsing activity to group devices into
With similar interests. The browser uses machine learning algorithms to grow a herd based on the sites an individual visits. Algorithms may be based on the of sites visited, the content of those pages, or other factors. The central idea is that these algorithm input features, including web history, are kept locally on the browser brazil phone number list and not downloaded elsewhere - the browser only exposes the generated herd. The navigator ensures that the herds are well distributed so that each herd represents thousands of people.
Identifier is short enough ("43a7") that it cannot - even with other data - be used to uniquely identify a particular device. This is not an index into a targeting taxonomy of any kind; the browser itself does not give any indication of the meaning of the "43a7" cluster.The flock a device belongs to (only one “flock id” will be sent per request) is sent from the device to the servers using another header: sec-ch-flock: 43a7we can expect dmps and others to provide