Content Decay
Content decay is the gradual loss of rankings, organic traffic and relevance in content that previously performed well. The causes are outdated information, shifting search intent, stronger competing content or Google core updates. Unlike a content audit, which describes the systematic review of all content, content decay refers explicitly to the loss of performance itself – whether or not it has already been spotted or fixed.
In practice
Traffic and ranking data in Google Search Console and Analytics should be reviewed regularly, quarterly for instance, using a comparison period of at least six months so that seasonal swings and technical false alarms are ruled out. Once decay is identified, there are three standard responses: a refresh (updating, adding missing subtopics, new rich media), consolidating overlapping pages to avoid keyword cannibalisation, or content pruning, meaning weak pages are unpublished or redirected to focus crawl budget and link equity on relevant content. A prioritisation matrix based on traffic, rankings, backlinks and conversions helps to concentrate resources on the pages with the greatest effect. For small and medium-sized businesses in Austria, a rolling editorial plan that checks older guides and category pages on a set cycle is advisable, before competitors or AI-driven search results take the traffic.