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DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) privacy

The use of DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) for improving DNS privacy and security, including the challenges and limitations of these technologies.

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Jan 24, 2026
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How does DNS-over-HTTPS and DNS-over-TLS affect DNS leak testing and privacy?

DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) change the mechanics of DNS leaks by encrypting resolver traffic—making classic eavesdropping and tampering by ISPs or on-path attackers far harder—while co...