![]() ![]() This HTML code comes from an email announcement Lyft sent to me. But this only happens when you actually click a link, not just open an email. For example, each link in the email may have a unique identifier that’s tied to you so a company can see who clicked the links in the email. There are other ways to track that you might have opened an email, too. When that specific image is loaded from the company’s servers, they know the email sent to your email address was just opened. When you open the email newsletter, and it loads images (even if you can’t see any images), it loads an image with a unique address. ![]() These images are also known as “web beacons.” Each person who receives a copy of the email newsletter has a unique tracking image address in it. This is a tiny invisible image file that’s only a single pixel in size, also known as a 1×1 image. Companies that send email newsletters and other automated emails almost always include a special tracking image. ![]()
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