content decay
Also called: traffic decay, content decay analysis
Content decay is the slow, sustained decline in an aging page's organic traffic, rankings, and relevance, measured against its own historical peak. It usually reflects fresher competitors or shifting search intent rather than anything broken in the page itself.
Content decay is normal aging, not a penalty. Animalz, the agency that popularized the term, maps a page’s life as five phases: spike, trough, growth, plateau, and decay. After the plateau, clicks slide as the web moves on.
Why pages decay
Four drivers show up again and again: the information goes stale, search intent shifts so the page no longer matches the query, competitors publish fresher and deeper pages, and Google recalibrates during core updates. On that last point Google is explicit that a drop is not proof your page is bad. Its core-update guidance compares rankings to a list of favorite restaurants, where pages that move down “aren’t necessarily bad” because other pages simply now make the top 20.
To spot decay, compare a page’s organic clicks in Search Console year over year (or six months over six months for newer pages) instead of reacting to one bad week. A sustained downward line, not noise, is the signal.
Three standard fixes:
update: refresh facts, add missing subtopics, re-align with current intentconsolidate: merge overlapping pages that cannibalize each otherredirect: 301 an obsolete page into a stronger relative
For example, a 2021 “best tools” list that has not been touched since will keep losing ground to rivals updated this year, even if its writing is fine. The reason to act early is compounding: a large back catalog quietly bleeds traffic while your attention goes to new posts.
How it affects your traffic
Decay is invisible on a dashboard that only tracks sitewide totals. A handful of old winners fade while new posts mask the loss, so revenue-driving pages can slip out of the top results before anyone notices. An SEO consulting engagement audits your full catalog against Search Console history, flags which decaying pages to update, merge, or redirect, and sets a refresh cadence so your strongest pages keep earning. That turns a slow, unmeasured bleed into a prioritized recovery plan tied to the pages that actually convert.
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