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DNS has been at the heart of infrastructure since its inception in 1985. It is responsible for resolving human readable names to the IP addresses used by computer software. DNS was one of the first layer 7 protocols in wide use, but it’s one of last to be widely encrypted. An Australian SSL Certificate Provider named DNS over TLS one of “technologies to watch” for 2019. As we’ve become more privacy conscious, those in the tech community have realized the importance of encrypting even the metadata around communications.