With Subdomains, you can see a breakdown of traffic share per main domain and their related subdomains.

Note: A subdomain URL must be formatted as subdomain.domain.com. If a URL has pages that come after, such as domain.com/page, this would not be considered a subdomain, it would be considered a folder or page.

What is the Value?

You can categorize the traffic share to see what's relevant to your needs. For example, viewing the main domain target.com and then the subdomains login.target.com and rcam.target.com, you can differentiate general traffic and customer traffic, as access to the two subdomains would indicate it's their customer base.

How to Use Subdomains

Within Company Research > Subdomains, you can see traffic share for subdomains for up to five sites.

In the table, you can see:


  • Hover your mouse over the domain name to see an overview, including Global Rank, Country Rank, and Last Month Visits.

  • Click the domain to see the Website performance.

  • Click the arrow to view the website in a separate tab.


How is subdomain traffic included in traffic to a main domain on Similarweb?

On the top right corner of the platform, you'll notice three dots. If you click, a sidebar will open where you will be given the option to toggle between Including or Excluding the subdomains. If you have a website, website.com which has 3 subdomains: a.website.com, b.website.com, c.website.com, 'Excluding Subdomains' would show you only visits to website.com and its pages, such as website.com/home or website.com/cart.

Analyzing 'Including Subdomains' would include visits to website.com, all 3 of the example subdomains, and all pages on the main domain and subdomains.

Feature Location

Research Intelligence > Company Research > Website Analysis > Overview > Subdomains

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