RFC 8879 · PROPOSED STANDARD · 2020
SUN · 14 JUN 2026
TLS Certificate Compression
Overview
RFC 8879, “TLS Certificate Compression”, is a Proposed Standard document published in December 2020 by A. Ghedini, V. Vasiliev. The canonical text is published by the RFC Editor.
Abstract
In TLS handshakes, certificate chains often take up the majority of the bytes transmitted.
This document describes how certificate chains can be compressed to reduce the amount of data transmitted and avoid some round trips.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 8879 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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