Can I get daily or hourly Google Search Volume?
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Unfortunately, Google Ads API in DataForSEO does not supply daily or hourly search volume data. The data source for this API is Google Ads, and Google provides search volume data based on monthly time ranges only.
Still, we can suggest an alternative. You can take a look at Google Trends API that provides relative popularity of keywords based on both hourly and daily time ranges. Although Google Trends does not provide absolute values, it’s still useful for understanding keyword popularity over time and estimating if the popularity is going up or down.