RFC 9848
Bootstrapping TLS Encrypted ClientHello with DNS Service Bindings, March 2026
- File formats:

- Also available: XML file for editing
- Status:
- PROPOSED STANDARD
- Authors:
- B. Schwartz
M. Bishop
E. Nygren - Stream:
- IETF
- Source:
- tls (sec)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC9848
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Abstract
To use TLS Encrypted ClientHello (ECH), the client needs to learn the ECH configuration for a server before it attempts a connection to the server. This specification provides a mechanism for conveying the ECH configuration information via DNS, using a SVCB or HTTPS resource record (RR).
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.