Whenever you visit a website, your browser sends a Domain Name System (DNS) query to resolve the domain name into an IP address. By default, these DNS queries are sent in unencrypted plain-text, allowing your ISP, network nodes, and hackers on public Wi-Fi to monitor every website you visit.
1. DNS-over-TLS (DoT)
DoT encrypts your DNS queries using the TLS protocol. It operates on a dedicated port (port 853) and ensures that DNS queries are secure from interception. DoT is highly secure and easy for network administrators to monitor or block, making it ideal for corporate setups.
2. DNS-over-HTTPS (DoH)
DoH wraps DNS queries in standard HTTPS traffic, routing queries over the standard web port (port 443). Because DoH queries are indistinguishable from regular web traffic, they are impossible for ISPs or firewalls to block, providing maximum privacy and bypassing censorship networks seamlessly.