Similarweb — Digital intelligence platform providing website traffic, referral sources, and competitive benchmarks

Similarweb measures traffic, audience demographics, search keywords, and market share for any public website or mobile app.

About Similarweb

Similarweb is the digital market intelligence benchmark. By synthesizing multi-source data (direct measurement, public data, partner networks, and web crawling), Similarweb estimates monthly visits, bounce rates, referral sources, paid keywords, and app rankings for virtually every commercial domain on earth.

Key features

  • Global Website Traffic Estimates — View total visits, visit duration, pages per visit, and bounce rates for competitors.
  • Traffic Acquisition Channels — Break down traffic percentages across Direct, Referral, Search, Social, and Display ads.
  • Competitor Benchmarking — Compare up to 5 websites simultaneously to analyze market share shifts.

Pricing

Pricing model: Freemium.

  • Similarweb Free — $0 — Basic traffic estimates, Top 5 organic keywords, Top referral sites, Browser extension
  • Starter Plan —
    25 / month — Historical traffic (3 months), Top 100 keywords, Competitor benchmarking
  • Professional — $333 / month — Historical traffic (15 months), Full keyword analysis, API access

Pros

  • The quickest way to estimate the monthly traffic and visitors of any competitor website
  • Free Chrome extension gives immediate traffic estimates while browsing
  • Clear breakdown of marketing acquisition channel distribution

Cons

  • Traffic estimates on small low-traffic websites (<20k visits/mo) can be less precise
  • Enterprise data packages are very expensive for boutique agencies

Platforms

Web, Chrome Extension

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