On what basis is Ahrefs’ Search Volume (SV) calculated?

Ahrefs calculates its Search Volume (SV) metric as a 12-month average. This approach provides a more stable and representative view of a keyword's popularity over time, smoothing out seasonal fluctuations and short-term spikes or dips in search interest. Using a monthly, weekly, or daily basis would make the SV highly volatile and less reliable for long-term strategic planning, as these shorter timeframes are more susceptible to temporary trends and events. The 12-month average offers a practical and actionable metric for SEOs to assess keyword potential consistently.