Trying to understand your website visitors? Many people compare Google Analytics vs Semrush. They are both powerful, but they do very different jobs for your website.
One tool looks inside your house, and the other looks at everyone else’s house. Understanding this difference is the key to knowing which tool you need for user behavior data.

What is Google Analytics?
Google Analytics (GA) is a free tool from Google that shows what happens on your website. You add a small tracking code, and it starts collecting data.
GA tells you exactly how many people visit your site, which pages they look at, and where they come from. It gives you real, factual data about your own audience.
What is Semrush?
Semrush is an all-in-one paid marketing tool. It is famous for helping with SEO, advertising, and content. It helps you find keywords and spy on your competition.
A key part of Semrush is “Traffic Analytics.” This feature estimates the traffic and user behavior on any website, not just your own. This is perfect for competitor research.
Conclusion: Google Analytics vs Semrush
Google Analytics and Semrush are not true rivals. One looks inward (GA), and one looks outward (Semrush). For the deepest data on your own users, use Google Analytics. For in-depth data on competitors, use Semrush.
Frequently Asked Questions (FAQs)
- Is Google Analytics or Semrush more accurate?
Google Analytics is 100% accurate for your own website because it tracks your visitors directly. Semrush data is an estimate based on clickstream data, which is very useful for competitor analysis but will not match your GA data.
- Can Semrush replace Google Analytics?
No. They serve different purposes. Google Analytics measures your internal performance, while Semrush analyzes the external market and your competitors. You need GA to see what’s happening on your site.
- Can Google Analytics show me my competitor’s traffic?
No. Google Analytics can only collect data from websites that you own and have placed its tracking code on. You cannot use it to see a competitor’s private data.
- Why doesn’t my Semrush data match my Google Analytics data?
They use different collection methods. GA uses a tracking code on your site for exact numbers. Semrush uses a large panel of internet users to create an educated estimate of traffic for any site.
- What is the main purpose of Google Analytics?
The main purpose is to understand your website’s performance and user behavior. It helps you see what content is working, where visitors get stuck, and how to improve your site.
- What is the main purpose of Semrush?
The main purpose is competitive intelligence and SEO. It helps you find keywords to target, analyze your competitors’ strategies, and find opportunities to get more traffic.
- Is Google Analytics free?
Yes, the standard version of Google Analytics (GA4) is completely free to use. There is a paid version called Analytics 360, but it is for very large enterprise-level businesses.
- Is Semrush free?
No, Semrush is a paid subscription tool. It offers a very limited free account that lets you perform a few searches per day, but its main features require a monthly plan.
- What is “user behavior” in Google Analytics?
In GA, this means specific, real actions. This includes metrics like pages viewed, time on page, scroll depth, clicks on links, and conversion events like a purchase or form submission.
- What is “user behavior” in Semrush?
In Semrush, this refers to estimated metrics for any website. This includes data like estimated monthly visits, average visit duration, bounce rate, and the top pages that attract visitors.