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Content Half-Life Estimator
Find out how quickly your content will lose AI citation relevance — and get a personalised refresh schedule to stay cited.
CONTENT HALF-LIFE ESTIMATOR
GEOLAB.NET
The topic type most affects decay rate
Original data significantly extends half-life
Enter 0 if just published
How to use this tool
1
Select your content’s characteristics
Topic category and industry velocity are the two biggest inputs. A “best AI tools” article in a fast-moving AI industry decays much faster than an evergreen how-to guide.
2
Enter your current update frequency
How often you actually update the page (not how often you plan to). Be honest — the schedule will be calibrated to where you are today.
3
Read the half-life estimate
Half-life is the time until your content loses ~50% of its AI citation probability relative to freshly-published competitors. Not total citation loss — just the decay threshold.
4
Follow the refresh schedule
Each milestone in your schedule corresponds to a specific intervention — from light touch (update stats) to full rewrite. Earlier interventions are lower effort.
5
Prioritise by current decay position
The tool shows how far along the decay curve you already are. If you’re past 50%, a refresh is already overdue and should be treated as urgent.
Decay & Freshness Series
Stay ahead of content decay
6 emails on freshness signals, decay patterns by topic type, and how to build a refresh calendar that keeps your citation rate from sliding.
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