Bluemountain is a “freemium” site owned by American Greetings. That is, it allows some free card sending and also offers a subscription for premium cards. This card was from a subscription account and retrieved from the person who received the card. The box above on the right lists the companies that either have placed cookies in the person’s browser in the process of loading the card, or that are checking for previously placed cookies.
The process is transparent; your Valentine recipient wouldn’t normally see it. This box is the result of a Ghostery application that reveals them.