Organic CTR is organic click-through rate, the percentage of organic search impressions that produce clicks. A common calculation is: (Organic clicks ÷ organic impressions) × 100.
It matters because organic search compounds over time when pages are technically accessible, useful, differentiated, and connected to real search intent. Clear SEO terminology also helps teams avoid shortcuts that create long-term risk.
Example
If a page receives 40 organic clicks from 2,000 reported impressions, its CTR is 2%. Use comparable query, device and date filters when comparing periods so a change in the mix of searches is not mistaken for a better snippet.