The given page doesn't seem to exist: Allan McLean (philanthropist), McLean's Mansion.
This tool attempts to detect copyright violations in articles. Simply give the title of the page or ID of the revision you want to check and hit Submit. The tool will search for similar content elsewhere on the web using Yahoo! BOSS and then display a report if a match is found. If you give a URL, it will skip the search engine step and directly display a report comparing the article to that particular webpage, like the Duplication Detector.
Running a full check can take up to 45 seconds if other websites are slow. Please be patient. If you get a timeout, wait a moment and refresh the page.
Specific websites can be skipped (for example, if their content is in the public domain) by being added to the excluded URL list.