Quick answer: Similarweb is used to analyze any website’s traffic, audience and marketing channels. It shows how many visits a site gets, where visitors come from and which keywords, ads and AI tools send traffic. Founded in 2007, Similarweb serves 6,000+ business customers, with paid plans from $125 a month.
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What Is Similarweb?
Similarweb is a digital intelligence platform that estimates traffic and engagement for almost any website or app. Or Offer founded it in 2007 in Israel, and it is now listed on the New York Stock Exchange.
In 2025, Similarweb reported $282.6 million in revenue and 6,128 customers, including many of the world’s biggest brands. Its data comes from a mix of first-party analytics, partner data and public sources.
Who Runs Similarweb?
Founder Or Offer led the company for nearly two decades. Michael Akkerman is set to take over as CEO in November 2026.
What Is Similarweb Used For?
Similarweb answers one big question: what is working for other websites? Here are the six ways people use it.
1. Checking Any Website’s Traffic
Type in a domain to see estimated monthly visits, bounce rate, time on site and top countries. It is the quickest way to size up a competitor or a potential partner.
2. Finding Competitors’ Traffic Sources
See how much traffic comes from search, social, email, referrals, display ads and direct visits. You learn which channels your competitors invest in before you spend a dollar.
3. Researching Markets and Niches
Market analysis tools show the top sites in any industry and how demand changes over time. Dropshippers and founders use this to validate a niche before launching.
4. Tracking AI Traffic and AI Ads
Similarweb tracks traffic from AI platforms like ChatGPT and shows who advertises inside AI search results. Its AI Studio lets you ask questions about the data in plain language.
5. Doing SEO and Keyword Research
Professional plans add keyword research, rank tracking, backlink analysis and technical SEO audits. You see which keywords drive real traffic to competitors, not just search volume.
6. Finding Leads and Partners
Sales and partnership teams use Similarweb to find companies by traffic size, industry and tech. Affiliate marketers also use it to judge a site’s real reach before a deal.
Similarweb Pricing Range (2026)
Similarweb has a free version plus self-serve and custom plans. Prices climb quickly as you add users, history and data credits.
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Traffic checker, keyword generator and browser extension with daily limits |
| Web Intelligence (entry) | From $125/mo | Similarweb’s stated starting price for entrepreneurs |
| Starter | $199/mo | 1 user, 100 data credits, 3 months of history |
| Professional | $399/mo | 500 data credits, 6 months of history, rank tracking, backlinks, SEO audit |
| Team and Enterprise | Custom quote | Multiple users, API, up to 37 months of history |
Prices checked October 2026 in USD. Starter and Professional are monthly list prices, and Similarweb often runs promotions for new users.
Who Is Similarweb Best For?
Similarweb is used by solo researchers and global enterprises alike. It is most valuable when you make decisions based on what competitors and markets are doing.
A Great Fit If You Are
- A dropshipper or ecommerce founder validating niches and studying competitor stores.
- A media buyer or marketer who wants to see which channels competitors rely on.
- An affiliate marketer checking a partner site’s real traffic before a deal.
- A MarTech or strategy professional building market reports and benchmarks.
- An investor or analyst tracking digital growth of public and private companies.
Look Elsewhere (or Mix and Match) If You
- Mainly need SEO tools: Semrush offers deeper SEO features at a similar price.
- Analyze very small websites: Estimates are less reliable for sites with low traffic.
- Need exact numbers for your own site: Use GA4. Similarweb is built for comparing others.
Similarweb Pros and Watch-Outs
- Pro: Excellent free traffic checker and browser extension.
- Pro: Strong channel breakdowns, including AI traffic.
- Pro: Covers websites, apps and whole markets in one place.
- Pro: AI Studio makes the data easy to question in plain English.
- Watch-out: Paid plans are expensive for solo users.
- Watch-out: Data is estimated and less accurate for small sites.
- Watch-out: Annual billing and plan changes go through support or sales.
Helpful Reads From the Similarweb Blog
Similarweb publishes data-rich research on how people use the web. These are the posts we recommend most:
- Zero-Click Searches in 2026: What They’re Costing You How to win traffic when Google answers on the results page.
- Introducing AI Ads: See Who’s Advertising Inside ChatGPT and AI Overviews A first look at the new AI ad landscape.
- Top Ecommerce Companies in the USA The 100 brands winning the traffic race in 2026.
- The Top 100 Most Visited Websites in the World Updated monthly rankings of the biggest sites.
- Most Searched Things on Google in 2026 Great inspiration for content and product ideas.
- What Is Price Intelligence? How ecommerce brands track and react to competitor pricing.
Frequently Asked Questions
What is Similarweb used for?
Similarweb is used to analyze website traffic, traffic sources, audiences and markets. Businesses use it to benchmark competitors, research niches, track AI traffic and find leads.
Is Similarweb free?
Yes, there is a free version with a website traffic checker, keyword generator and browser extension. It has daily limits, and deeper data requires a paid plan.
How much does Similarweb cost?
Paid plans start from $125 per month according to Similarweb. Starter lists at $199 per month and Professional at $399, while Team and Enterprise plans are custom priced.
How accurate is Similarweb?
Similarweb is a strong estimate for comparing websites and spotting trends. It is less accurate for small sites, so treat it as directional rather than exact.
Is Similarweb better than Semrush?
They overlap but focus on different things. Similarweb is stronger for traffic sources and market research, while Semrush is stronger for SEO and keyword work.
Can Similarweb show traffic from ChatGPT?
Yes. Similarweb tracks referral traffic from AI platforms such as ChatGPT and shows which brands advertise in AI search.
Who owns Similarweb?
Similarweb is a public company listed on the NYSE under the ticker SMWB. It was founded by Or Offer in 2007.
Get Started With Similarweb
Every smart business decision starts with understanding the market. Similarweb shows you what your competitors are doing, where their customers come from and which opportunities are still open.
Start with the free traffic checker on a few competitor sites, then upgrade when you are ready to turn those insights into a real strategy.
