Similarweb's Search Volume metric is calculated using our new Search 3.0 data set - combining real-user data with powerful SERP data to provide even greater depth of coverage, freshness, and granularity of search insight.

Our new Search 3.0 data set recalibrates every day, ensuring users have the most up-to-date intelligence on what is happening in their own and their competitors search eco-system.

We provide search volume data in 3 different metrics across our features:

  • Last 28 Days Volume - The ‘last 28 days’ Search Volume gives the most accurate and up-to-date representation of keyword volume in real time.
  • Volume - represents the actual number of searches in the selected month for a keyword in Google
  • Average Volume - The Average Search Volume metric represents the monthly average of searches for a keyword in Google over the last 12 months.


Volume is based on comprehensive data from our contributory network and the real searches they are making. Further modeling is applied that enables us to predict the ration between mobile and desktop volumes as well.

Our "hybrid" keyword volume calculation addresses some of the main problems with Google's volume metric:

Google API

Similarweb Keyword Volume


Google groups similar keywords, identifies the group leader and assigns the leader’s volume to everyone in the group. Therefore, you will find multiple similar keywords with the same volume.

With Similarweb's Search 3.0 keyword volume calculation, keyword volumes are unique, not duplicated across close match keywords. 


Google’s volume is heavily based on Google Ads, so long-tail keywords that don’t have ads placed against them will tend to not have volume metrics provided. Also, certain keyword types are banned from having ads on them.

Our keyword database is continually expanding. While quantity is incredibly important, the amount of keywords available is meaningless without the quality of keyword data that SEO and Paid Search Marketers need. Search 3.0 data powers our digital marketing tools to provide more targeted, precise keywords - not just every single keyword that has ever been searched (you don’t need ‘best laptop 2017’ as a keyword for your SEO strategy), or duplicate keywords you have to manually sort through yourself (a problem we hear about other tools all too often).


Google Ads API has a 2-3 weeks delay.

We provide traffic estimations for every traffic-driving URL on every keyword every day. This is enabled by our proprietary Daily Search Volume that derives the most granular traffic estimations available.

Similarweb is the only tool that provides data for the "last 28 days." You can see what’s trending, and what’s performing to stay one step ahead. Even evergreen content should be backed up by the most up-to-date search terms and search volume.

Using this metric

Search volume of a keyword is one of the most important metrics to consider when doing keyword research. Not all searches lead to a click of a result: users might either refine their search or just find the information they were looking for within a SERP feature. Knowing the search volumes of the keywords you want to target provides the real search demand.


Similarweb aligns with the SEO industry standard for search metrics, measuring "Search Volume" and "Clicks" based on keyword, country, and URL. "Clicks" represent individual instances of a link being clicked from the SERP, while "Search Volume" reflects the number of searches for a specific keyword on Google. Our models precisely predict the CTR (click-through rate) for every URL, and we can estimate how many clicks were made with the Search Volume of a keyword.

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