SEO-GEO · the 23SEOGEO team · Glossary

Content Decay

Content Decay is the gradual traffic drop a few months after publishing, caused by stale info, fresher competitors, or SERP feature shifts (AI Overviews stealing clicks). Diagnose via GSC: a >30% drop comparing month 3 vs month 6 = decay.

Category: Content

What is Content Decay?

Content Decay is the gradual traffic drop a few months after publishing, caused by stale info, fresher competitors, or SERP feature shifts (AI Overviews stealing clicks). Diagnose via GSC: a >30% drop comparing month 3 vs month 6 = decay.

How do you apply it in practice?

Fix: refresh stats, add fresh case studies, embed new video, append FAQ schema, then push via IndexNow.

Why does it matter for AI search citations?

Generative search engines tend to extract sentences that are clearly defined, consistent and quotable on their own. Writing concepts like "Content Decay" as one consistent definition across your site, backed by structured data and verifiable sources, lowers the chance of being misread. This improves readiness only; it does not guarantee citations or ranking gains — measure actual citations to know.

Which related terms should you know?

Information Gain

Information Gain is the score from Google's 2022 patent: how much 'new information' a page adds relative to already-indexed content. Generic rewrites score near 0; first-party data, exclusive cases, and original experiments score high and rank first.

IndexNow

IndexNow is an open protocol from Bing and Yandex that lets sites POST a list of changed URLs to search engines for near-instant crawling. Google does not yet participate, but Cloudflare, Wix, Yoast, and others have integrated it natively.

Content Decay at a glance

Term facts
TermContent Decay
CategoryContent
Last reviewed2026-10-06

References

These documents support the definitions and methods, not ranking or citation promises; reviewed as of 2026-10-06.

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