There is a "tor check" link on IPs with link http://toolserver.org/~overlordq/scripts/checktor.fcgi?ip=[REDACTED] but toolserver is dead long ago, so this should be removed or replaced with the better one by The Tor Project's ExoneraTor.
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The link points now to https://www.dan.me.uk/torcheck?ip=$1 which is working at the moment.
If you still see some old links, please double check your wiki's MediaWiki:Checkuser-toollinks message.