|Please note meta:CheckUser policy/Local policies for requirements that are specific for de.wikipedia.org.|
This tool scans recent changes to retrieve the IPs used by a user or show the edit/user data for an IP or IP range. Users and edits by a client IP can be retrieved via XFF headers by appending the IP with "/xff". IPv4 (CIDR 16-32) and IPv6 (CIDR 96-128) are supported. No more than 5000 edits will be returned for performance reasons. Use for good reason only, and in accordance with WMF’s CheckUser policy.