DoH
A protocol that encapsulates DNS queries within HTTPS requests for transmission, improving the privacy and resistance to interference of DNS queries and supporting queries for any DNS record type through an HTTP interface.
Core Facts
Timeline (last 90 days)
Encrypted DNS concentrates queries among a few large resolver providers, potentially reinforcing centralization.
Encrypted DNS (DoH/DoT) can prevent DNS queries from being eavesdropped on and tampered with, but it also makes network-level content filtering and parental control more difficult.
Ad blockers require continuous maintenance of rule lists, and smart TV system updates may reset DNS or introduce encrypted DNS (DoH) to bypass blocking.
DoH (DNS over HTTPS) is a protocol that encapsulates DNS queries in HTTPS requests for transport; Cloudflare DoH supports querying any record type via the type parameter, with type=64 corresponding to SVCB and type=65 to HTTPS.
Mullvad began offering public DNS services in 2022, supporting DoH/DoT encryption protocols and keeping no logs.
Quad9 supports modern encrypted DNS protocols such as DoH and DoT.
All Facts (7)
DNS over HTTPS (DoH) encapsulates DNS queries within encrypted HTTPS traffic, rendering traditional detection methods based on plaintext DNS traffic analysis ineffective.
65%UnverifiedEncrypted DNS concentrates queries among a few large resolver providers, potentially reinforcing centralization.
50%UnverifiedEncrypted DNS (DoH/DoT) can prevent DNS queries from being eavesdropped on and tampered with, but it also makes network-level content filtering and parental control more difficult.
50%UnverifiedAd blockers require continuous maintenance of rule lists, and smart TV system updates may reset DNS or introduce encrypted DNS (DoH) to bypass blocking.
50%UnverifiedDoH (DNS over HTTPS) is a protocol that encapsulates DNS queries in HTTPS requests for transport; Cloudflare DoH supports querying any record type via the type parameter, with type=64 corresponding to SVCB and type=65 to HTTPS.
50%UnverifiedQuad9 supports modern encrypted DNS protocols such as DoH and DoT.
50%UnverifiedMullvad began offering public DNS services in 2022, supporting DoH/DoT encryption protocols and keeping no logs.
50%