WhatsApp is probably the last entity that I would be worried about reading my message. WhatsApp is trying to sell you a promise where nobody, other than the re

WhatsApp is probably the last entity that I would be worried about reading my message. WhatsApp is trying to sell you a promise where nobody, other than the recipient, can know the content of your messages. Having the owner of a site whose URL is included in a WhatsApp message in real time as it is compose breaks that promise - now the site owner and many more people (DNS server operators, both ISPs at the very least) have information about the content of that message.