alphagov/redirector — pull request #593 by rjc123 (2014-04-02 16:53:47+00:00)
Title: Adding comments to warn against updating the tna_timestamp 

These sites were part of partial transitions of corporate content; these timestamps represent the pre-transition full-site TNA crawls. If the timestamp is changed/updated, URLs for these sites may present GOV.UK pages, rather than the desired original site URL. Consider using the custom archive link feature.