How to identify user of my website in IP non-based way? I'm looking for something like fingerprint2.js, but user identity should be the same no matter if user change browser or ip address. One device = one const identifier.

How to identify user of my website in IP non-based way? I'm looking for something like fingerprint2.js, but user identity should be the same no matter if user change browser or ip address. One device = one const identifier.

• javascript
• ip
• identity
• fingerprinting

Share Improve this question Follow asked Mar 24, 2022 at 20:24 sebxx4sebxx4 4911 gold badge11 silver badge77 bronze badges 2

• 1 Related: stackoverflow./questions/43492726/… stackoverflow./questions/5257351/… webmasterworld./forum91/2378.htm superuser./questions/1398622/… – Jerry Jeremiah Commented Mar 24, 2022 at 20:38
• Maybe can I use google analitycs script to generate unique user ID? – sebxx4 Commented Apr 25, 2022 at 10:00

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 2

Short answer is you can't, at least not reliably, especially with just JavaScript.

Existing fingerprinting techniques leverage what are essentially considered by vendors as security flaws in the information the browser exposes to try and e up with a unique "fingerprint" for a user. This relies on browser-specific features, though.

Something which provided enough info/allowed you to store data which escapes the sandbox of a specific browser and persistently identifies a user puter-wide would almost certainly be considered a serious security flaw, and would be patched rather quickly.

See this question for more details.