Similarweb vs Semrush

by Gralio Feb 19, 2025

Similarweb and Semrush are both powerful marketing intelligence platforms, but they cater to different needs. Similarweb excels in providing detailed competitor analysis and market research data, while Semrush offers a broader suite of SEO tools and better integration with marketing workflows. Choose Similarweb if your primary goal is competitor research and market analysis; choose Semrush if you require a comprehensive SEO toolkit and tighter integration with your marketing processes.

At Gralio.ai we help to simplify your decision-making process by offering detailed, side-by-side software comparisons like this one, to help you confidently choose the tool that aligns with your business goals.

This comparison was created by analysing 5369 reviews and 60 websites, saving 1 day, 6 hours, 19 minutes of reading.

Similarweb

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Semrush

Website LinkedIn Twitter

About

Similarweb is like a giant spyglass for the internet. It helps you understand what people are doing online, so you can make smarter decisions for your own website and marketing. Want to know who your competitors are online? Similarweb shows you. Want to see which websites are sending traffic to your competitors (so you can try to get them to send traffic to you)? Similarweb shows you that too. You can even see what keywords people are using to find your competitors, and which online ads are working best for them. Basically, if you want to know how your website stacks up against the competition and find new opportunities to grow online, Similarweb gives you the information to do it.

Semrush is an online visibility and marketing platform that helps businesses improve their online presence. It offers a wide range of tools for SEO, content marketing, competitor analysis, social media management, and paid advertising. With a massive database, Semrush provides insights into keywords, backlinks, website traffic, and competitor strategies, enabling businesses to make data-driven decisions to enhance their online visibility and achieve marketing goals. Many Fortune 500 companies utilize Semrush's comprehensive suite of digital marketing tools.

Summary

Main difference

Similarweb is better for detailed competitor analysis and market research. Semrush offers a wider range of SEO tools and deeper integration with marketing workflows.

Relative strengths of Similarweb (compared to Semrush)

More granular website traffic data and deeper competitor insights.
Superior keyword research capabilities and competitive analysis.
Stronger focus on market research and competitive intelligence.

Relative weaknesses of Similarweb (compared to Semrush)

Less comprehensive SEO toolkit compared to Semrush.
Limited integration with marketing automation and other marketing tools.
Pricing can be less transparent.

What companies are using Similarweb and Semrush?

No data

Who is using Similarweb and Semrush?

No data

Brendan Hufford

SaaS Marketing - Growth through Content, Community & SEO

Charlie Hills

I use AI to create content that converts

Connor Gillivan

SEO expert; 7x Founder (Exit in 2019)

Anna York

Digital Marketing Consultant at Anna York Consulting

Kai Cromwell

eCommerce SEO

Show all 9 stacks

Who should use Similarweb VS. Semrush

Similarweb offers comprehensive website traffic and performance insights. Users love its user-friendly interface and actionable Sales Signals. However, some find data accuracy inconsistent for smaller websites. Best for marketing professionals in small to large companies.

Semrush is a powerful online visibility and marketing platform suitable for businesses of all sizes. It offers tools for SEO, content marketing, and competitor analysis. Users love Semrush's actionable insights and comprehensive data, highlighting its ability to significantly reduce campaign design time. However, some users find the pricing structure complex and expensive. Ideal for businesses seeking improved online presence and data-driven marketing decisions.

Best for small, medium, and large businesses.
Ideal for e-commerce, retail, media, marketing, and software companies.

Best fit for small, medium, and large businesses.
Ideal for E-commerce, Media, Marketing, and Software companies.

Similarweb and Semrush features

Supported

Partially supported

Not supported

Type in the name of the feature or in your own words tell us what you need

Email & SMS

Not supported

Similarweb does not support sending emails or SMS messages.

Not supported

Semrush does not support sending emails or SMS messages.
Keyword Research

Supported

Yes, Similarweb offers comprehensive keyword research tools to improve website traffic and SEO.

Supported

Semrush supports keyword research with tools and a large database.
Competitor Traffic Analysis

Supported

Similarweb analyzes competitor strategies using traffic data and insights.

Supported

Semrush supports competitor strategy analysis using traffic data and trend analysis over time.
Enterprise SEO Solutions

Supported

Similarweb offers enterprise SEO tools like competitive analysis, keyword research, and custom plans.

Supported

Semrush offers an Enterprise SEO platform with advanced features for large organizations.
Data-Driven Content Strategy

Supported

Similarweb supports data-driven content strategy by analyzing audience, competitors, and market trends.

Supported

Semrush supports data-driven content strategy with keyword research, competitor analysis, and content effectiveness analysis.
Competitor insights

Supported

Similarweb provides competitor SEO performance insights including traffic, keywords and backlinks.

Supported

Semrush offers a variety of tools for analyzing competitors’ SEO performance, including keyword analysis, backlink analysis, traffic analysis, and technical SEO audits.

Qualities

Value and Pricing Transparency

-0.3

Rather negative sentiment

-0.64

Rather negative sentiment
Customer Service

+0.76

Strongly positive sentiment

+0.43

Rather positive sentiment
Ease of Use

+0.82

Strongly positive sentiment

+0.67

Rather positive sentiment
Reliability and Performance

+0.12

Neutral sentiment

+0.55

Rather positive sentiment
Ease of Implementation

+0.54

Rather positive sentiment

+0.19

Neutral sentiment
Scalability

-0.5

Rather negative sentiment

-0.56

Rather negative sentiment

Similarweb and Semrush Pricing

No data

User sentiment

Rather negative

-0.3

See full Pricing page

No data

User sentiment

Rather negative

-0.64

See full Pricing page

Similarweb and Semrush review insights

5369 reviews analysed from and

Users love

Comprehensive insights into website traffic and performance.
User-friendly interface and easy to navigate.
Sales Signals feature often provides helpful and actionable insights.
The "Similar Sites" feature is very useful for lead generation and campaign planning.

SEMrush is great in that it provides not only insights and metrics but clear actions to improve a given page or an entire site!
Semrush takes 70% of the time off designing campaigns that rely on keywords, competitor behavior, or site insights.
I love the way how it shows the analytics of authority score as well as the detailed traffic report of the site.
Domain Overview, Technical SEO auditing, Keyword Research

Users dislike

Data accuracy can be inconsistent, especially for smaller websites.
Website categorization is shaky and indecipherable at times.
The data is only updated once a month.
Limited mobile app data, many features are desktop only.

The pricing for SEMrush can be steep, especially since the social media calendar posting feature, now costs an additional $29 per month.
SEMrush has a robust monetization system that adds up very quickly.
Price was a little high for the smallest package.
The cost - we used to be able to share accounts, but now have to register separate accounts for all users.

Similarweb and Semrush Ratings

G2

4.5/5

(1030)
Capterra

4.5/5

(133)

G2

4.5/5

(2095)
Capterra

4.7/5

(2131)
Glassdoor

4.0/5

(272)

Company health

Employee growth

No data

13% increase in the last year

Web traffic

No data

5% decrease in the last quarter

Financing

No data

January 2018 - $40M

How do Similarweb's competitor analysis features compare to Semrush's?

Both Similarweb and Semrush offer robust competitor analysis features. Similarweb focuses on providing insights into website traffic, keyword rankings, and competitor content analysis, allowing users to understand competitor strategies and identify opportunities. Semrush offers a broader suite of tools encompassing SERP analysis, keyword research, and competitor traffic analysis, enabling in-depth examination of competitor performance and backlink profiles. While both platforms offer valuable competitor insights, Semrush provides a more comprehensive toolkit for a wider range of SEO and marketing tasks.

Which product offers better data-driven content strategy tools?

Semrush offers better data-driven content strategy tools. While Similarweb excels at competitor analysis and traffic analysis, Semrush provides features specifically for data-driven content strategy, including keyword research, competitor content analysis, and content effectiveness analysis. This makes Semrush a more comprehensive solution for content planning and optimization.

What are the advantages of Similarweb?

Similarweb excels at competitor analysis, providing insights into website traffic, keywords, and referring sites. Users praise its comprehensive data and user-friendly interface, particularly for identifying competitor strategies and new opportunities. The "Similar Sites" feature is also highlighted for effective lead generation.

What are the disadvantages of Similarweb?

Similarweb's data accuracy can be inconsistent, particularly for smaller websites. The platform's website categorization is sometimes unclear, and data updates are only monthly. Mobile app data is limited, with many features restricted to desktop use.

Alternatives to Similarweb and Semrush

Ahrefs

Ahrefs is a suite of online tools designed to improve a website's search engine ranking and visibility. It provides data and insights on competitors, keywords, backlinks, and website content. Businesses use Ahrefs to research competitor strategies, discover relevant keywords, find link-building opportunities, audit their website for SEO issues, and track their ranking progress against competitors. Ahrefs is known for its large database and focus on data accuracy for marketing professionals.

Serpstat

Serpstat is an all-in-one SEO toolkit designed to give businesses a competitive edge online. It helps you track your website's performance in search engines, analyze competitors, research valuable keywords, and develop an effective content strategy. Serpstat offers tools to audit your website, identify technical issues, and track your progress over time. Its features include competitor analysis, keyword research, content creation and analysis, and search engine results page (SERP) tracking. Serpstat is used by businesses of all sizes who want to improve their online visibility and attract more customers.

SpyFu

SpyFu is a search marketing tool that helps you understand your competitors' online strategies. It shows you the keywords they use for SEO and advertising, their ad campaigns, and even their estimated budget. You can use this information to improve your own website ranking, find new customers, and make sure you're ahead of the competition.

SE Ranking

SE Ranking is an all-in-one SEO software suite designed to help businesses improve their search engine rankings. It offers a wide range of tools, including keyword research, competitor analysis, website audits, backlink monitoring, and rank tracking. SE Ranking is known for its user-friendly interface and comprehensive set of features, making it suitable for both SEO beginners and experienced professionals. It aims to provide actionable insights and data-driven recommendations to optimize website content, improve visibility, and attract more organic traffic.

Dragon Metrics

Dragon Metrics is a global SEO software platform designed to help businesses improve their search engine rankings. It offers a comprehensive suite of tools, including rank tracking, competitor analysis, reporting, and technical SEO auditing. Dragon Metrics is known for its in-depth data, user-friendly interface, and global coverage, making it suitable for businesses of all sizes looking to boost their online visibility. It promises simplified reporting, clear insights, and ultimately, better rankings.

Adbeat

Adbeat is a digital advertising intelligence software that lets you see the online advertising strategies of your competitors. You can view competitors' ads, the publishers they use, and how they buy their advertising. The software promises to provide insights that help you spend your advertising budget more effectively by uncovering your competitors' most profitable strategies. Adbeat is used by advertisers, agencies, and ad networks.

Page co-authored by

Michal Kaczor

CEO at Gralio

Michal has worked at startups for many years and writes about topics relating to software selection and IT management. As a former consultant for Bain, a business advisory company, he also knows how to understand needs of any business and find solutions to its problems.

Tymon Terlikiewicz

CTO at Gralio

Tymon is a seasoned CTO who loves finding the perfect tools for any task. He recently headed up the tech department at Batmaid, a well-known Swiss company, where he managed about 60 software purchases, including CX, HR, Payroll, Marketing automation and various developer tools.

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