For those who are unaware how this all fits together, the literal pixel's purpose is to ensure that even if Javascript is entirely disabled on the client (end-u

For those who are unaware how this all fits together, the literal pixel's purpose is to ensure that even if Javascript is entirely disabled on the client (end-user) system, there is still a log entry at the tracker's end of things noting a time/date and IP address of document access. This is then fairly easily correlated with other logged data to further flesh out the profile of the user that data leads back to. This even works across domains, without actually visiting Facebook or Google, allowing them to still track that you've visited a site where their pixel is used, and the time/date/IP of that access. It's just one small part of their whole tracking toolbox, and the pixel itself is merely an image file, and unable to in and of itself load any Javascript. Still doesn't stop 'em from using it to track you… Only way to do that is to block Javascript and never access the pixel image itself as well. Of course, then they track you through other means…