Content decay is what happens to most pages if nobody touches them. A post that brought in 600 visits a month two years ago brings 450 last year and 200 now. There was no penalty and no single bad day, just a slow slide.
Why it happens
- The information is out of date. Prices, rules, product models and years change. A “2023 guide” looks stale in 2026.
- Competitors published something better. A newer page answers the question more fully or more clearly.
- Search intent shifted. People searching the topic now want something different, such as a comparison instead of a definition.
- The SERP changed. An AI Overview, video carousel or forum results now sit above organic results, so the page gets fewer clicks even if its ranking holds.
- Your own pages compete. A newer post on a similar topic splits signals with the old one (see keyword cannibalization).
- Links rot. Sites that linked to the page update or disappear.
Why it matters
Decay is easy to miss because it’s gradual and total traffic can still look healthy while new posts mask losses in older ones. Bean & Barrel Coffee’s “best coffee grinders for home” post was once its biggest source of organic traffic and newsletter sign-ups. Three of the six grinders it recommends are discontinued, and the top results now include hands-on test photos. Its rankings have slipped from 3rd to 11th over 18 months. That one page decaying costs more than several new posts bring in.
How to spot decaying pages
- In Search Console’s Performance report, compare the last three months with the same three months a year earlier (year on year avoids seasonal swings).
- Switch to the Pages tab and sort by the biggest drop in clicks.
- For each page, check whether the fall comes from lower position, fewer impressions or lower CTR. Each points to a different cause.
- Check the current results for its main keyword to see what’s outranking you now.
Rank tracking shows the same pattern from the keyword side: a slow downward trend over weeks, not a sudden drop.
How to fix it
The answer is usually a content refresh: update facts, add what newer competitors cover, improve the answer to the main question, refresh images, and fix internal links. If the topic no longer matters to your business, consolidate it into a stronger page or let it go.
Common mistakes
- Changing the date without changing the content
- Rewriting a page that’s still performing well because it’s “old”
- Only ever publishing new content and never reviewing the back catalog
RankThat’s Content tools flag decaying posts and help plan refreshes, so the pages that built your traffic don’t quietly lose it.