Extension:Whois

The Whois extension adds a special page to obtain basic information about an IP address from the WHOIS registries.

Usage
The Whois extension adds special page  to a wiki. At this special page you are able to obtain basic information about an IP address from the WHOIS registries (including abuse contact and common geographical information). However, to access this page you need to be a registered and logged-in user on the wiki.

Note that this extension is not listed in Special:Specialpages and it requires an IP address as a subpage argument (i.e. ).

At this time I found it useless to add a menu item to the tools section of an anonymous IP user page. Instead, you may want to add a link to this special page to MediaWiki:Anontalkpagetext:

Get info about this IP

Or you may want to add the same link to MediaWiki:Checkuser-toollinks on your wiki.

This extension is under development, so there will be probably more features in the future (like a basic form, adding a menu item etc.).

User rights
To prevent abuse of this tool, you need to be a logged-in user on your wiki to access the Special:Whois page.