Chrome Incognito limits certain records saved on your device, but it does not stop websites from receiving browser and device signals that can contribute to fingerprinting. A private window is a local privacy feature, not a way to become anonymous online.
How browser fingerprinting works
Browser fingerprinting combines characteristics a browser exposes while loading a website. Rahul Naskar, writing for Android Police, describes examples such as screen resolution, graphics hardware, time zone, language, and operating system. Together, these signals can help trackers distinguish a browser configuration, including across visits. They do not necessarily reveal the person’s real-world identity by themselves.
Cookies and browsing history are stored records. A fingerprint is built from characteristics a site can read during a visit, so changing how a browser handles local session data does not itself stop that collection.
What Chrome Incognito changes
Chrome says Incognito windows share a session. After all Incognito windows close, Chrome does not save that session’s browsing history, cookies and site data, or form information to the device. Downloads and bookmarks remain.
Websites and the services they use may still see activity, as may network operators, employers, and schools. The difference between local session records and site-visible signals is the key to understanding what Incognito does:
| What you’re looking at | Chrome Incognito | Browser fingerprinting |
| Main effect | Limits specified browsing records saved locally for the session | Uses browser and device characteristics exposed to a website |
| After the session | History, cookies and site data, and form information are not saved locally; downloads and bookmarks remain | Incognito’s local data handling does not itself prevent a site from receiving signals during a visit |
Incognito also does not provide general protection against phishing or malware. Kaspersky identifies those as threats the mode does not protect against.
What a fingerprint-test result tells you
The Electronic Frontier Foundation’s Cover Your Tracks estimates how easily trackers might fingerprint a browser. EFF says the test does not measure every tracking technique or defense, so a “unique” result is limited to the characteristics and method the test evaluates. On its own, that label does not prove that every site can identify you or that a browser’s protections failed.
When you use the EFF Cover Your Tracks test, consider its stated scope and the signals it reports, rather than treating one label as a universal privacy score.
What Brave says Shields does
Brave says its Shields feature randomizes or sometimes removes selected browser features used for fingerprinting. The company describes Standard as the default setting and says its more aggressive option can increase the risk that websites will break. These are Brave’s descriptions of its own protections and settings.
