AnalyticsPublished30.04.2026

SimilarWeb

A service for estimating competitor traffic without access to their analytics. How to learn traffic sources, referrals and engagement on any website.

On this page
What SimilarWeb showsTraffic sourcesEngagement and audience
In brief

SimilarWeb is an analytics platform that estimates website traffic using data from partner networks, browser extensions and other Big Data sources. It enables competitor comparison, traffic source analysis and audience behavior insights.

What SimilarWeb shows

The service estimates a site's total monthly traffic, visitor geography and channel distribution. Data is not perfectly accurate but enables competitor comparison and trend detection.

Traffic sources

  • Search (organic and paid) — share and top queries.
  • Social — which platforms drive traffic.
  • Direct — brand strength.
  • Referrals — specific source websites.
  • Display ads — banner ad investment estimates.

Engagement and audience

You can assess average time on site, pages per visit and bounce rate. These metrics give an indirect view of competitor content quality.

SimilarWeb data are estimates, not exact figures. Always cross-check with your own Google Analytics.
FAQ

Common questions

For large sites (50k+ visits), accuracy is high; for smaller ones, a significant margin of error is possible. Use for comparative analysis, not absolute values.
Only those visible in the Search section, which is a fraction of the real pool. For a full picture, use Ahrefs or SEMrush.
The free browser extension provides basic stats for any site. Full access is paid.
SimilarWeb focuses on traffic estimation, Serpstat on SEO and PPC tools. They complement each other.
Direct contacts

Discuss your project?

Share your goals and website context — I will suggest a practical next step.

pavlo.seo@proton.me@pavelbarushkaLinkedIn
SimilarWeb — What is it?