The predictable lifecycle of organic traffic to fresh content
A typical blog post or article follows a traffic curve that peaks around 6-12 months after publication, then decays. For the first month, traffic climbs steeply as Google crawls, indexes, and gradually improves rankings. Around month 3-6, the page reaches its peak ranking and maximum monthly traffic. From month 6 onward, competitors publish newer content on the same topic. Their pages are fresher, sometimes more comprehensive. Their rankings improve relative to yours. Your traffic slowly decays as you lose position to newer competitors. By month 18-24, you've lost 30-50% of peak traffic.
The decay isn't universal. Evergreen pages on topics with stable intent decay slower. Posts on trending topics or seasonal angles decay faster because the topic cools. A post about 'best running shoes 2025' is obsolete by 2026. A post about 'how to train for a marathon' is evergreen but still competes against newer 'how to train for a marathon 2026' posts. The half-life of organic traffic is real.
Refreshing content to restart the ranking decay curve
The solution is systematic content refreshes. At month 8-10, before peak decay starts, audit your top-performing posts. Update publication dates, refresh statistics with newer data, expand sections that are outdated, and add internal links to new related content you've published since. A proper refresh signals freshness to Google. Your rankings often improve again and decay starts fresh. A page refreshed every 12-18 months maintains higher average traffic than a page published once and abandoned.
The investment decision is straightforward. If a page generates $500 monthly revenue and decays to $250 after 18 months, refreshing costs $200 in time. That refresh buys you 6-12 more months at $400-500 monthly average. Refresh ROI is typically 300-400%. The challenge is discipline. Many teams don't have a refresh calendar and only remember to update pages reactively when they notice rankings have dropped. Proactive refreshes prevent that decline. Set calendar reminders to revisit top-performing content quarterly, refresh annually, and you're outrunning the decay.