I do not see this, and I believe this is thanks to me using <i>Ghostery</i>. It’s a plug-in that allows you to see, choose and filter in or out the scripts that run on your page.
In this case, I see about 15 of them (and block most, out of experience that those are from company with disreputable practices) so I couldn’t tell you which is the culprit.<p>I strongly recommend that plug-in to any one, technically inclined or not: the savvy because that level of control makes sense, marginally more than AdBlock; the less so to appreciate how much data-gathering is happening, and what are the names of the main actors.