| DNS over HTTPS (DoH) is a relatively new protocol that encrypts domain name system traffic by passing DNS queries through a Hypertext Transfer Protocol Secure encrypted session. DoH seeks to improve online privacy by hiding DNS queries from view. DoH works similarly to DNS, but HTTPS sessions keep the requests hidden and minimize the information exchanged during queries. Web browsers, like Mozilla's Firefox, Microsoft's Edge and Google's Chrome, all have the ability to use DoH with the goal of increasing data privacy and security for users. When users enter a URL into their browser, a DNS query is typically needed in order to resolve the domain name portion of the URL into an IP address. While it may be tempting to think of this name resolution request as being sent directly to a DNS server, the reality is that, unless a DNS server exists on the local network, the name resolution request has to pass through the internet service provider's network and through any routers that exist between the ISP and the DNS server. The name resolution request is visible at any one of these hops. Essentially, this means that an ISP can see exactly which sites are being visited simply by monitoring DNS name resolution requests. DoH hides the name resolution requests from the ISP and from anyone listening on intermediary networks. DoH also helps to prevent DNS spoofing and man-in-the-middle (MitM) attacks because the session between the browser and the DNS server is encrypted. Continue reading about DoH... | 
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