Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

Searching for the best traffic analytics tool for analyzing your competitors’ traffic?

SEMrush and SimilarWeb are two commonly heard names when you are searching for a tool like this.

It is really important to analyze your competitors’ traffic and estimate their metrics accurately to grow your online business.

These two tools can help you in knowing your competitor’s traffic accurately but you can’t go with both, of course! So, you need to finalize the one best out of both.

So, in this article, I am going to compare SEMrush vs SimilarWeb for competitor traffic analytics and find out which one is best.

SEMrush Vs SimilarWeb: Tools Introduction

Let’s start with a basic introduction of both the tools to make the folks understand who are unaware of these tools.



SEMrush is a perfect bundle of useful SEO and Social media tools that makes easy to dominate the competition and grow an online business or blog.

It offers a traffic analytics tool that used to get the estimated traffic of any website you want to find based on analyzing clickstream data about all of a domain’s traffic sources.

Not going into more in-depth because we are just comparing SEMrush Traffic Analytics tool here, if you want to know more about the SEMrush tool then consider reading our complete SEMrush review here…



SimilarWeb is a popular BI Solution, known for its competitive online intelligence and web measurement.

SimilarWeb provides web analytics services for business, it provides information about competitors’ website traffic volume, referral sources, keyword analysis, demographics and website stickiness among other features.

It was founded back in 2007 and now became one of the most trusted website traffic analytics tool.

SEMrush Traffic Analytics Vs SimilarWeb Features Comparison

Let’s compare the features of both the traffic analytics tools and find out which one is good and value for money.

Global And Regional Data

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

SEMrush Traffic Analytics offers complete full access over 190 countries traffic stats and you can filter the result by location. All the regions are available in one subscription, you don’t need to pay for each country’s database.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

SimilarWeb also processes the data across a whole range of territories but you will get the access of only purchased databases. At that, each country database has its own separate pricing.

Winner: SEMrush is a clear winner here because of having a bigger database and you don’t need to purchase each country database to view the data like SimilarWeb.

Traffic Sources Analysis

In SEMrush traffic analytics overview page, just scroll down a bit down and you will find the traffic sources of your searched domain(competitor).

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

This section will help you in knowing where your competitors are getting traffic from, most of their traffic comes from organically or social.

You can click on the View full report button at the bottom to see the complete traffic source report.

On SimilarWeb, go to Web Category Analysis>Traffic Channels from the left side menu to see the traffic sources of your competitors.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

You will be seeing the Traffic Share by sources into a chart view and just down to that, you can see the Traffic Volumes By Source in a graph view.

A visualized way of presenting report helps in better understanding the result. It also shows two additional channels, paid search and display ads.

Winner: It is tough to choose one but SimilarWeb wins here by a slight edge because it offers two additional channels, paid search and display ads.

Keyword Research

SEMrush and SimilarWeb both tools offer keyword research tool that can help you in finding keywords that are generating high traffic for your competitors.

There are two types of keyword research:

  • Traditional: Keyword research using seed keyword
  • Modern: Competitor keyword research

SEMrush offers an exclusive keyword research tool named “Keyword Magic Tool” that you can use to start your keyword research using a Seed Keyword.

For competitor keyword research, enter your competitor’s domain into the search box at SEMrush dashboard. SEMrush will show you all the keywords that your competitor is ranking for and also how much traffic they generated from those keywords.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

With SimilarWeb, you can perform both types of keyword research, using seed keyword or competitor keyword research.

Just enter your seed keyword in the search box at the top of SimilarWeb dashboard. You will get all the keyword ideas around your seed keyword along with the metrics that matter.

For competitor keyword research, put your competitor’s domain into the search box.

Competitor keyword research SimilarWeb

SimilarWeb will show you all the well-performing keywords of your competitors along with the traffic share they generated by each keyword.

Winner: SEMrush offers an exclusive keyword research tool that makes keyword research too easy. Keyword Gap tool helps in identifying the keyword gap between you and your competitors.

Traffic To The Most Popular Pages

SEMrush shows you the most popular pages of your competitor’s website that are generating the most traffic, by this data, you can easily identify their best performing posts.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

SEMrush will show you the top pages on your competitor’s website along with the unique pageviews, unique visitors, entrance sources(sources from the traffic coming from), traffic from desktop and mobile.

You can use the filter options at the top to see data from any specific country or SEMrush also allows you to see the historical data of your competitor.

On the other side, SimilarWeb used to have a feature called Popular pages that shows pages that generate the most traffic. But that feature is no more available in the SimilarWeb.

Winner: SimilarWeb doesn’t have this feature. So, SEMrush Traffic Analytics is the clear winner.

Mobile Data

The most percentage of overall traffic comes from mobile devices, so analyzing your competitors’ mobile traffic is really important.

In SEMrush, the mobile data is available with every report. You just need to filer the result and choose the mobile device from the top.

SEMrush Mobile Traffic

SimilarWeb provides an option at the right side which you can use to analyze the mobile traffic data of your competitors.

SimilarWeb Mobile Traffic
Winner: It’s a tie because both the tools offer mobile traffic data.

Competitor Traffic Analysis

Just by entering your competitor’s domain into the Traffic Analytics from the left-side menu. SEMrush will show you a comprehensive traffic analysis report of your competitors.

SEMrush also shows the Estimated accuracy at the top that highlights how accurate the given data is, three points means the accuracy level of data is high.

Semrush traffic analytics report

This report includes:

  • Visits
  • Unique Visitors
  • Pages/Visits
  • Ave. Visit Duration
  • Bounce Rate

The data are also shown in the graph view that can help you to understand the traffic up and down on a given time of period.

After that, you can see the Traffic Share divided into Desktop Vs Mobile and you can see the subdomains traffic for all both devices, desktop and mobile.

Traffic Share SEMrush

At the end, you can see traffic divided into countries, this can help you to know from which country your competitor is getting traffic from.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

You can also compare your domain with your competitor’s domain to identify the differences and similarities in between.

Audience overlap will help you to understand the percentage of users who visited both sites, your analyzed site and competitor.

Audience Overlap SEMrush Traffic Analytics

With SimilarWeb, you can analyze your competitor’s traffic data including total visits, device distribution, unique visitors, visits duration, pages per visit, bounce rate and a lot of other important traffic data.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

Go to Audience>Geography and you will get the traffic data divided into countries. This data can help you to know in which country your competitor is getting the most traffic from.

Traffic divided by country simiarweb

As like SEMrush, SimilarWeb also allows you to compare domains. You can add multiple domains to analyze their traffic data, you can also use your domain and compare with your competitors to find the gaps.

You can add up to 5 domains to compare.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

You can analyze your competitor’s demography data where you can get insights like Gender distribution and Age distribution.

SimilarWeb Demography
Winner: SEMrush is the winner here because it offers audience overlap and a lot more details about the competitor.

Industry/Category Analysis

SEMrush has a separate tool named “Market Explorer” that you can use to find other similar websites in your niche. By this, you can get in-market audience insights.

SEMrush Market Explorer

SimilarWeb also allows you to do market/industry research and find other similar websites the within same niche.

Marketing Research SimilarWeb
Winner: Both are amazing in market exploring, but this time SimilarWeb wins. Because with SimilarWeb, you can check category performance, traffic share, leaders of the industry, and benchmark yourself against these metrics.

API Access

Both the tools allow you to use API, whatever reason you need for…

In the SEMrush, you can get the API Access by request. It can be obtained from the interface subscription, it means you don’t have to buy Traffic Analytics if you only need it for integrating it with your product or custom reports.

For example, to receive all data you just make one query with SEMrush. Whereas, it requires three queries in SimilarWeb.

SimilarWeb offers a truly comprehensible UI, you can clearly see how many API units you have spent and how many left. There are even special Similar Websites API and Adult Website API.

With SimilarWeb API, You can get even more data.

Winner: With SimilarWeb API, you can get more data.


Both the tools are using the clickstream data collection, projection and estimation, the discrepancy is inevitable.

If you start analyzing your own domain with either SEMrush Traffic Analytics or SimilarWeb and then comparing stats with your Google Analytics, you will see the difference in the numbers.

Here is a truth, you won’t found any super-accurate tool that can measure exact traffic.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

SEMrush also shows the Estimated accuracy with all reports that show how accurate presented data is, if the Estimated accuracy is high then the presented data is highly accurate.

To check the tools’ accuracy, OWOX BI conducted their independent research. They compared data from Google Analytics accounts of 787 anonymized websites with more than 100,000 visitors per month, observed by OWOX BI, with the stats that SEMrush Traffic Analytics and SimilarWeb showed.

The numbers in the table show the % of the difference between internal analytics and competitive intelligence tools. The smaller the error, the higher the accuracy.

Website PopularitySEMrush Traffic Analytics Error %SimilarWeb Error %
100K–500K visits6761
500K–1M visits5059
Over 1M visits4557

According to OWOX, SimilarWeb data accuracy didn’t correlate with website traffic volumes, while SEMrush Traffic Analytics showed a clear tendency to be more accurate for large domains.

Winner: SEMrush is more accurate than the SimilarWeb, so it wins here.

SEMrush Vs SimilarWeb Pros & Cons

SEMrush Pros

  • SEMrush comes with many powerful tools that help in dominating the competition and growing an online brand
  • Provides data about most traffic generated pages of your competitor where SimilarWeb doesn’t have this feature
  • Offers an exclusive Market Explorer tool that makes easy to find similar websites within the same industry/market
  • You can get databases of all countries in one single subscription, don’t need to pay for each country database
  • SEMrush shows you the well-performing keywords of your competitors that are generating high traffic
  • API Access is a lot easier to obtain and use
  • SEMrush Traffic Analytics data is more accurate than the SimilarWeb
  • Get mobile traffic data of your competitors with ease using the device filter option
  • Visualized reports make it easy to understand the data
  • Access to historical traffic data of any website

SEMrush Cons

  • Bad in support, there is no live chat option available. It is hard to reach and get instant solution of your problems
  • Traffic Analytics tool is not included in SEMrush free plan

SimilarWeb Pros

  • SimilarWeb shows profitable keywords for both SEO and Paid marketing
  • Offers traffic channel-wise for all competitors, such as how many shares of paid and organic traffic are competitors getting, from display vs SEM etc.
  • Market explorer helps in identifying similar websites within the same industry
  • SimilarWeb Chrome extension gives snapshot data instantly for almost every site as you visit
  • Traffic source data helps to see which sites are strong in SEO or other channels
  • SimilarWeb offers a free plan for beginners that you can use with some limitations
  • Offers live chat support, on the other hand, there is on live chat option in SEMrush
  • SimilarWeb offers Google Play Keywords analysis that helps to see what amount of traffic each keyword brings in Google Play Store
  • Audience analysis, including who is visiting your website along with basic demographic information

SimilarWeb Cons

  • Doesn’t offer the most popular pages of competitors
  • Each country database has separate pricing and needs to be purchased additionally
  • SimilarWeb pricing is very complicated compare than SEMrush
  • Difficult to use for newbies, as it has a complicated interface and options
  • Less accurate data compare than the SEMrush traffic analytics tool

Pricing Comparison: SEMrush Vs SimilarWeb


SEMrush offers three plans here that provide you access to over 40+ advanced SEO and social media tool. All features for website traffic analysis included in the SEMrush Traffic Analytics Tool, all regional databases and historical info are available for $200/month.

You will get the access to all tools by buying any SEMrush subscription and the total cost will be $299.95/month if you go with the SEMrush Pro plan.

The most important thing here is, you will get access to all databases.

SEMrush Transparent Image

My Secret Weapon To Dominate SEO

SEMrush is the tool that I’m using since 4 years back to ensure my blog’s growth on SERP. It really makes easy to perform keyword research, technical site audit, backlink audit, stealing backlinks from competitors, spying competitors and much more.

* This is an affiliate link, I might get a commission but it will not add any extra cost to you.

Website Traffic analytics With SEMrush Vs SimilarWeb: Which Is More Accurate?

SimilarWeb pricing is very complicated, you need to purchase each country’s database separately to see the data of the same specific country.

It also offers a free plan where you can get access to limited tools and features.

Conclusion: Which Tool To Choose?

Now the question is, which one to buy? SEMrush or SimilarWeb?

If you are looking for a value for money tool then I suggest you to go with the SEMrush Traffic Analytics for analyzing your competitors’ traffic.

By purchasing SEMrush Traffic Analytics, you will get 40+ advanced SEO tools(by purchasing SEMrush subscription) including keyword research, site audit, backlinks and tons of other SEO tools.

Whereas, SimilarWeb has limited features compared to SEMrush. It may not be the best value for money.

I hope you found this SEMrush vs SimilarWeb comparison for traffic analytics, if you did then must share it with others.

SEMrush vs SimilarWeb

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Ravi Dixit

Ravi Dixit is a Blogger and Affiliate Marketer, He is the founder of StayMeOnline Who Loves to help others. Travelling and learning new things online are his first love. "I only want a life without any boundaries- Ravi Dixit"

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