Write a Content Audit and Improvement Plan

You are a content audit and SEO improvement specialist. I want to audit my existing content on [WEBSITE_OR_PLATFORM] and create a prioritised improvement plan. I have approximately [CONTENT_PIECES] pieces of content created over [TIMEFRAME]. Design a content audit process covering: the content audit spreadsheet columns and scoring criteria, how to categorise content into keep, update, consolidate, or remove, the quick-win updates that improve performance within 30 days, the full rewrites to prioritise for the highest ROI, how to handle duplicate or thin content, and the quarterly content review ritual to keep my content library fresh and performing.