How come when my video is shared to certain social sites, it links to WellcomeMat.com and not my domain?

This is the case for Twitter, Facebook and Google+. Pinterest will link to your domain.

In order to automatically pull in your video's metadata (video, image, title and description), we have to use the video's landing page URL on WellcomeMat.com. When clicked, this also necessarily takes the user to the video's landing page on WellcomeMat.com rather than to your domain. There is a workaround for this if you are an API customer (enterprise only).