[kds3]

> Chrome itself (like Firefox and Safari), according to this article, doesn't send a persistent tracking UUID

According to the article:

> Edge also sends the hardware UUID of the device to Microsoft and Yandex similarly transmits a hashed hardware identifier to back end servers.“

But Chrome also sends Chrome installation ID in X-Client-Data [0], which looks pretty much like hardware UUID.

[0] https://news.ycombinator.com/item?id=22236106

[artjomb]

It does, but only to google domains and only in non-incognito mode. If you're still paranoid and clear your cookies after you close Chrome, you can add a commandline option to Chrome so that this UUID is randomized on each start of Chrome.