Compression Dictionary Transport

This is a collection of references and tools related to using dictionary-based compression on the web.


The main overview document and reference is the W3C Compression Dictionary Transport document. It also includes a set of examples showing the impact of using dictionary-based compression.

The HTTP protocol-level parts of the compression dictionary is being developed through the IETF. The current Internet Draft (pre-RFC) is here.



Browser Status

Compression Dictionary Transport is available in Chrome 119 or later as an origin trial while the Header values go through the standards process. You can register for the origin trial here.