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Having the best data at your fingertips is make-or-break when it comes to leading your market. However, when relying on poor data, the cost to your business may be higher than you realize. This is why Similarweb continuously strives to improve our data so that we can provide the most accurate and actionable digital intelligence available.
As CTO at Similarweb, implementing this data update was a key objective for me and my team to ensure that our customers have access to the best data and a clear path into the digital world. We dramatically increased domain, keywords, brands, and product coverage and implemented enhancements to our models for improved accuracy across all web datasets and metrics. Now, businesses can create strategies and make strategic decisions based on the most comprehensive and valuable digital insights possible.
Since 2013, Similarweb’s mission has been to map every corner of the digital world. We process tens of billions of digital signals gathered daily into an ultra-high-resolution picture of everything happening online.
In July, our substantial improvements and enhancements sprang to life.

Here’s how we did it.

Similarweb’s data methodology is paramount, and it’s all about the blend. We use a multidimensional approach to ensure that every data point we estimate is both reliable and representative of a site’s traffic and usage. Our unique mix of digital signals obtained from various sources allows us to measure and map the digital world in a timely and comprehensive way.
We’ve made several important updates across our web methodology:
This new data version brings immense improvements by significantly enhancing the quality and reliability of the data we provide our customers, giving them the most comprehensive and accurate traffic & engagement estimates of the web.
What you get:

Expanded coverage
We’ve significantly increased the number of domains we track, over 30 million new domains to be exact, including long-tail sites and smaller sites that usually have fewer than 5000 monthly visits. This means we now cover a much broader section of the internet, providing a more comprehensive view.
Improved precision and accuracy
New advanced filtering and improved algorithms ensure your strategic decisions are based on the most precise and reliable metrics available. In fact, all core metrics (Website Visits, Bounce Rate, and Global Rank, among others) have improved significantly, guaranteeing trend consistency, scale accuracy, and stability.
Increased global coverage
The millions of new domains added enhanced our global data collection, allowing for better insights from more regions crucial for our customers with a global presence.
We are committed to you, our customers. This is what drove us to implement and launch this data update. We enhanced our methodology, improved our core web metrics and web estimations, and introduced improvements to our Marketing Mix algorithms, so that you can better pinpoint the different traffic sources to your website, identify the marketing channels that drive incremental impact, and see the complete picture.
What’s next?
That’s easy. Now it’s your turn to take control and climb the rankings with Similarweb Digital Data by your side.
Why did Similarweb update its data?
We updated our data to ensure that our customers have the most comprehensive and accurate data in order to understand their market and make strategic business decisions.
Has your data methodology changed?
No. Our data methodology remains the same. We improved all its components to provide better estimation capabilities and coverage.
As a current customer, how will this update affect me?
Because we’ve incorporated more data points from both existing and new sources, you get more precise traffic & engagement estimations.

by Ron Asher
Chief Technology Officer
Ron has 20+ years of R&D leadership experience, with roles at Bond, Stratoscale, and IBM. He holds a BSc in Statistics and Computer Science and is a graduate of Israel's elite 8200 intelligence unit.
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