This is why whenever I share infographics, including this one, I (1) upload it to my own site; and (2) never use the embed/share code that is included with the infographic.
Whenever I do use a particular site’s embed/share code — which is usually the case with videos — I go through each line carefully to make sure that it only includes information that is needed to share the video. But for everyone who does not know code, I wholeheartedly recommend that you include a rel=”nofollow” tag in the HTML, as recommended by this infographic. For example,
<a href=”http://www.examplelink.com” rel=”nofollow”>Your text</a>