This tool allows you to conduct a reverse image search from the stored thumbnail images associated with videos. It will often locate additional copies of your target video. The results for each search include Google, Tineye, Yandex, Bing, and Baidu. If using Chrome, you will need to allow popups. The "Video ID" can be found in the address of each video page, as indicated in red below.
Updated December 1, 2015 on IntelTechniques.com. Created in partnership with AutomatingOSINT.com