All reports of html-changelog-without-text-version for the archive. The extended description of this tag is:

If the upstream changelog file is HTML formatted, a text version should also be accessible as "changelog.gz". (This can be created by "lynx -dump -nolist")

Refer to Debian Policy Manual section 12.7 (Changelog files) for details.

Severity: important, Certainty: certain

Check: changelog-file, Type: binary

This tag has not been emitted in any package tested by Lintian.