The Site Explorer metrics in the Dashboard are updated every:

Ahrefs Site Explorer metrics in the Dashboard are updated every 12 hours. This ensures that the data you see, such as organic traffic, backlinks, and keyword rankings, is relatively fresh and reflects recent changes. While daily (24h) updates would also provide fresh data, Ahrefs aims for a higher frequency to give users more timely insights. More frequent updates like every 6 hours or 15 minutes would demand significantly more processing power and resources, potentially impacting the tool's performance and cost without a proportional increase in actionable insights for most SEO analysis tasks. Therefore, 12 hours strikes a balance between data freshness and system efficiency.