Content audit (n.): A content audit is an analysis of all the indexable content on a website to determine how best to deal with it. The process can be broadly split into two stages. The first is the content inventory stage, where a catalogue of all the content to be reviewed is compiled in the form of a spreadsheet. The second stage is the analysis itself, where the content is reviewed against a set of predefined criteria and recommendations are made about whether to leave, remove, improve, split or consolidate it.
Guidance on using this template can be found in 'How to conduct a content audit (and why you should)'.