Semrush vs Similarweb: Best Keyword Researcher in 2025?

by | Last updated Dec 14, 2025

Winner
semrush
4.5
  • SEO Toolkit
  • Content Marketing
  • Market Research Toolkit
  • Advertising Toolkit
  • Social Media Toolkit
  • Free trial available
  • Paid Plans from $117.33/month
Runner Up
Similarweb best
3.5
  • Keyword Explorer
  • Competitor Analysis
  • Google Analytics Integration
  • Rank Tracker
  • Website Research
  • AI Trend Analyzer
  • Paid Plans from $199/month
Semrush vs Similarweb

You’re ready to dive into the world of keyword research, but feeling stuck?

Choosing the right tool can feel overwhelming, especially with powerful options like Semrush and Similarweb on the table. 

It’s a common problem for anyone trying to get their content seen online. 

This article is here to help you solve that problem.

We’ll break down Semrush vs Similarweb for keyword research, showing you what each tool does best. 

Overview

We thoroughly tested Semrush and Similarweb, diving deep into their features.

This hands-on approach allowed us to see exactly how each tool performs for your keyword research, leading to this direct comparison.

semrush logo
4.5out of 5

Semrush delivers an impressive array of tools to supercharge your SEO efforts.

Pricing: 14-day free trial available. Plan starts at $117/month.

Key Features:

  • Keyword Research
  • Competitor Analysis
  • Site Audit
Similarweb CTA
3.5out of 5

Ready to dominate your niche? Get similar insight into competitor strategies.

Pricing: 14 Days Free Trial. Plans start from $199/month.

Key Features:

  • Website Traffic Analysis
  • Competitor Analysis
  • Market Intelligence

What is Semrush?

Semrush is a super powerful tool. Think of it as your all-in-one digital marketing helper. 

It’s like having a whole team of marketing experts in one place. Many people love how much data it gives you!

Also, explore our favorite Semrush alternatives…

image 45

Our Take

semrush logo

Seven million users saw a 152% increase in website traffic with Semrush. Could you be next? Explore it out to discover the secrets to online success.

Key Benefits

  • A very broad range of marketing tools.
  • Offers excellent competitive analysis.
  • Provides a holistic approach to SEO.
  • Extensive keyword research.
  • Detailed site audit capabilities.

Pricing

All the plans will be billed annually.

  • Pro Plan ($117.33/month): Competitor analysis, keyword research, and website audit.
  • Guru Plan ($208.33/month): Content Marketing Toolkit and historical data.
  • Business Plan ($416.66/month): Share of Voice, extended limits, API access, PLA, and analytics.
Semrush Pricing

Pros

  • Very complete toolset.
  • Data is very accurate.
  • Great for competitor analysis.
  • Provides deep insights.
  • Excellent site audit.

Cons

  • Can be overwhelming.
  • Learning curve is steep.
  • Some features cost extra.
  • Reports can be complex.

What is Similarweb?

Similarweb is really good at showing you the big picture of the internet.

It’s like having a telescope for online trends.

This tool helps you see how different websites are doing, where their visitors come from, and what your competitors are up to.

Also, explore our favorite Similarweb alternatives…

Similarweb Introduction

Our Take

Similarweb CTA

Similarweb excels at broad market and competitor traffic insights but has limited direct local SEO features like Google Business Profile management and deep local rank tracking compared to other tools.

Key Benefits

  • Broad Market Insights: Covers over 100 million websites and apps, offering a wide view of digital activity.
  • Detailed Traffic Sources: Pinpoints traffic coming from direct visits, search, social media, referrals, email, and display ads.
  • Competitor Benchmarking: Compare your website’s performance against up to 100 competitors to understand market share.
  • Audience Demographics: Provides insights into visitor age, gender, location, and interests.
  • Fresh Keyword Data: Updates keyword data daily, helping you spot trending keywords and adapt quickly.

Pricing

  • Starter ($199/month)
  • Team ($14,000/Year)
  • Business ($35,000/Year)
  • Enterprise (Custom)
Similarweb Pricing

Pros

  • Excellent for market research.
  • Great competitor analysis.
  • The user interface is clear.
  • Traffic data is detailed.
  • The browser extension is handy.

Cons

  • Less SEO feature depth.
  • Limited social media data.
  • No robust backlink analysis.
  • Data for small sites is limited.

Feature Comparison

Semrush is the quintessential seo tool and complete seo software suite for seo professionals, specializing in organic search and content marketing.

Similarweb is a powerful platform for digital intelligence and market research, leveraging real user data for website traffic analysis.

This comparison highlights their core platform’s capabilities and pricing, from Semrush’s keyword magic tool to Similarweb’s app intelligence.

1. Core Focus: SEO Suite vs. Web Intelligence

  • Semrush: Functions as the best seo tools suite, providing deep competitive intelligence and seo related tools to manage the entire seo campaign. The semrush review confirms its focus on helping seo professionals win on search engines through on page optimization.
  • Similarweb: The similarweb platform is a web intelligence solution providing broad digital intelligence across the competitive landscape. Similarweb features focus on analyzing consumer behavior and overall market share for digital strategy.

2. Website Traffic and Engagement Metrics

  • Similarweb: Excels at website traffic analysis, leveraging real user data to provide highly detailed engagement metrics and historical data. The platform enables users to perform traffic benchmarking and analyze key metrics like user behavior for digital insights.
  • Semrush: Provides highly accurate organic traffic and paid search estimates, focused on search performance. Its seo data helps users monitor their website rankings and seo performance, though it lacks the broad engagement metrics from non-search sources.
Youtube Video

3. Keyword Research and Gap Analysis

  • Semrush: Excels with its proprietary keyword magic tool, which provides massive keyword ideas and enables users to create custom keyword databases. The keyword gap tool helps seo professionals identify high-value target keywords and related keywords missed by competitors.
  • Similarweb: Provides keyword rankings and keyword performance data, focusing on high-level competitive benchmarking and traffic benchmarking to understand the impact of target keywords on search traffic and overall website traffic analysis.

4. Technical SEO and Content Optimization

  • Semrush: Provides a detailed site audit tool that offers extensive reports on technical seo issues and site health. It includes the seo writing assistant and on page seo checker to streamline content marketing and on page optimization efforts.
  • Similarweb: Does not offer dedicated technical seo audit features or an seo writing assistant. Its value is in showing which website pages are generating traffic and keyword rankings, informing where the user should focus their on page seo checker efforts externally.

5. Specialized Intelligence

  • Similarweb: Offers unique intelligence features like app intelligence (for app traffic and app usage on mobile apps), sales intelligence, shopper intelligence, and stock intelligence (for stock performance). This breadth is essential for category managers and holistic online marketing campaigns.
  • Semrush: Focuses primarily on search engine and social media marketing. While it provides competitive paid search insights, it does not offer the specialized app intelligence or shopper intelligence provided by the similarweb platform.

6. Competitive Benchmarking

  • Similarweb: Excels at competitive benchmarking and market research, offering data driven insights into the entire competitive landscape. Its digital insights and audience insights are crucial for building a digital strategy and monitoring consumer behavior and emerging trends.
  • Semrush: Provides deep competitive analysis and the keyword gap tool specifically for seo tools. Its focus is on ranking against competitors for organic keywords and paid keywords, not the overall market research share.
Youtube Video

7. Workflow Integration and Data Sources

  • Semrush: It integrates seamlessly with google analytics and google search console for traffic verification and advanced data collection. This creates a unified experience for seo professionals to manage all seo related tools.
  • Similarweb: Also integrates with google analytics and provides actionable insights based on blending its real user data with client-side google analytics data, which is a key strength of the similarweb features.

8. API Access and Enterprise Tools

  • Similarweb: The similarweb api provides robust api access and api pricing for product developers to embed digital intelligence into custom applications, offering solutions for ai agents and tracking ai traffic. The enterprise plan offers the full platform’s capabilities.
  • Semrush: Also offers api access and a robust platform, but its core focus is the end-user studio. The team plan and professional plan unlock advanced features for seo professionals and digital marketing agencies.

9. Pricing, Accessibility, and Review

  • Similarweb: Similarweb pricing and similarweb cost are generally premium, reflecting the depth of web intelligence data. It offers a limited free version and free trial. The similarweb review often praises its high-level competitive intelligence.
  • Semrush: Offers a free trial and is often seen as a highly valuable, affordable tool that still provides advanced features. The semrush review confirms its breadth and ability to handle large-scale seo efforts without requiring the specialized similarweb cost tier.

What to Look for in a Keyword Research Tool?

Picking the right research tool can make all the difference for your seo strategy. Here’s what matters most:

  • Data Accuracy & Depth: Does the tool provide reliable search volume data and detailed insights into keyword difficulty? 
  • Comprehensive Features: Does it cover more than just keywords? Think competitor analysis, backlink data, and technical SEO. 
  • User Friendliness: Is the interface easy to navigate? A complex tool, even if powerful, can slow you down if you’re constantly searching for features.
  • Search Intent Analysis: Does the tool help you understand why people are searching for a keyword (informational, transactional, navigational, commercial)? 
  • SERP Features Analysis: Can it show you what search engine results pages (SERPs) look like for a keyword, including featured snippets, local packs, and videos?
  • Content Optimization Support: Some tools offer features for creating seo content template ideas or even real-time writing assistance.
  • Pricing & Scalability: Consider your budget now and for the future. Can the tool grow with your needs, offering upgrades or different plans as your business expands?

Ultimately, the best keyword research tool will align with your specific goals and provide the insights you need to drive organic traffic and improve your overall seo strategy.

Final Verdict 

After looking closely at Semrush vs Similarweb.

Our pick for comprehensive keyword research and overall SEO is Semrush.

We’ve tested both, and Semrush and Similarweb offer different strengths.

But for deep dives into keywords, site health, and backlinks, Semrush comes out on top.

If you need a powerful research tool to boost your search traffic and build a solid seo strategy, consider Semrush.

You should listen to us because we’ve broken down each feature and shown you what really matters for your success online.

More Semrush

Here’s how Semrush stacks up against other popular SEO tools, highlighting their key features:

  • Semrush vs Content Raptor: Content Raptor focuses on AI-powered content optimization and entity coverage.
  • Semrush vs Surfer SEO: Surfer SEO is strong for on-page content optimization based on SERP analysis.
  • Semrush vs Moz: Moz provides user-friendly SEO essentials and a strong Domain Authority metric.
  • Semrush vs SE Ranking: SE Ranking offers accurate rank tracking and comprehensive SEO tools at a lower cost.
  • Semrush vs SpyFu: SpyFu specializes in competitor PPC insights and historical ad data.
  • Semrush vs Similarweb: Similarweb provides deep market intelligence and website traffic analytics.
  • Semrush vs Raven Tools: Raven Tools offers robust reporting and integrates various marketing data.
  • Semrush vs Mangools: Mangools provides simple, user-friendly SEO tools, especially for keyword research.
  • Semrush vs Ranktracker: Ranktracker focuses heavily on precise rank tracking and local SEO.
  • Semrush vs Ahrefs: Comprehensive SEO and marketing toolkit vs. industry-leading backlink analysis.

More of Similarweb

We’ve compared Similarweb vs other top tools, highlighting their standout features in brief:

Frequently Asked Questions

Which tool is better for overall SEO, Semrush or Similarweb?

For overall SEO, Semrush is also more comprehensive, offering deeper keyword, backlink, and technical analysis. While SimilarWeb also provides useful insights, Semrush focuses more on a complete SEO toolkit.

Can Similarweb accurately estimate website traffic?

Yes, Similarweb also specializes in traffic analysis and can estimate traffic for most websites. Its strength lies in showing broad market trends and traffic sources across many sites.

Is Semrush good for competitive analysis?

Absolutely! Semrush is also excellent for competitive analysis. It helps you see competitors’ top keywords, ad strategies, and backlink profiles, giving you a detailed view of their online presence.

When should I consider Similarweb over Semrush?

You might consider Similarweb if your primary need is broad market intelligence, understanding industry trends, or detailed traffic source breakdown for many websites. It excels at high-level competitive insights, like Similarweb itself.

Do both tools offer keyword research capabilities?

Yes, both Semrush and Similarweb offer keyword research. Semrush provides more granular detail, while Similarweb also helps identify popular keywords and trends, particularly in relation to overall market traffic.

Related Articles