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Jim Hague edited this page Mar 12, 2020 · 25 revisions

DNS-STATS Compactor project homepage

The DNS-STATS Compactor project is a set of tools for capturing and working with DNS server traffic recorded in Compacted-DNS (C-DNS) files. C-DNS is a space-efficient file format for storing DNS traffic. It is defined in RFC8618.


Release 1.0.0 implements RFC8616. The previous Compactor production release (0.12) is based on the earlier Internet Draft draft-ietf-dnsop-dns-capture-format-04.

Supported Versions

Version 0.12 is now maintained for critical bug fixes only. It will be supported until the 1.1 release is available.


DNS-STATS Compactor is an open source project licensed under the Mozilla Public License v2.0.

See About for more details.

Latest release


Update 2020-03-12

1.0.0: This release supports C-DNS as described in RFC8618. Compactor writes only C-DNS 1.0 format, inspector reads C-DNS 1.0 and all previously supported draft formats. See the Releases page for more details.


For the production release see the PDF User Guide which includes detailed installation instructions.

Or download this nicer HTML User Guide to view offline (since the GitHub wiki will only show this as raw HTML - we are working on a better website!).

Distribution Packages

Debian packages for the production 1.0.0 release are available from ppa:dns-stats/compactor.



As of the 1.0.0 release develop and master now contain the 1.0 code.

The 0.12 release is maintained from the 0.12 branch.


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