It was founded in 1980 as the Cardiff Post and was published by Media Wales Ltd, a division of the United Kingdom’s largest newspaper publisher as of the late 2000s, Trinity Mirror. It underwent a relaunch in August 2009 under the above title, intended to reflect its status as a companion to Media Wales’s major daily/evening title, the South Wales Echo. Its editorial offices were at the Media Wales headquarters in Cardiff.
It had no website of its own; as with all Trinity Mirror’s South Wales newspapers, its online presence was through WalesOnline.co.uk.
It came out on Thursdays. The final edition was distributed on 27 October 2011.