Understand device environment changes
Visitor Analysis: Understand device environment changes
Browser and system version changes
If different browsers or system versions appear for the same Device ID, it may be that the user upgrades the system, updates the browser, uses a different browser, or switches the device environment. Please open the events at the corresponding time, and then combine the risk signals and business behavior to judge.
Why does Native SDK have no browser information?
The iOS and Android Native SDKs identify the mobile application environment and do not necessarily provide browser attributes. It is therefore normal for the browser field to show —; this means the attribute does not apply to the current access scenario, not that identification failed.
The difference between "unknown" and "no such attribute"
| Page display | Meaning |
|---|---|
| Unknown | The current scene may have this attribute, but no available value was obtained this time |
| — | This attribute is not applicable to the current platform or access scenario |
| Specific value | The system successfully identifies and displays the attribute |
For example, a Web event may display "Unknown" if it does not obtain the browser version; a Native SDK may display "—" if it does not have a browser property.
Device ID is not the same as the identity of a natural person
One user may use multiple devices, and one device may be used by multiple people. Device ID is a device identification identifier, not a name, account number or legal identity.
When logging in, registering, trading, or judging rights, please use Device ID in conjunction with accounts, orders, verification results, and risk signals. Do not use it alone to confirm identity or permanently ban users.