CDX

A CDX file contains metadata related to web archiving. It is a text-based file format designed to accompany ARC or WARC files.

Usually, CDX files will contain little or no information not contained in or derivable from the ARC or WARC, and their primary purpose is to serve as an index of it.

Specifications

 * The CDX File Format (c.2006)
 * The CDX File Format (c.2015)
 * CDX File Format

Other links and references

 * Rewriting the CDX file format