Semrush provides a wide variety of data for digital marketing, covering SEO, competitive research, AI visibility, advertising, content marketing, and more. This data is collected using our own machine-learning algorithms and trusted third-party providers, ensuring a high standard of quality across all of our databases.
This article explains the types of data you can find in Semrush and how we collect it.
Why Marketers Trust Semrush
Semrush has been the trusted choice of millions of marketers worldwide for over a decade. Known for its commitment to innovation and data quality, the platform has earned numerous industry awards across Europe, the US, MENA, the UK, and from the Interactive Marketing Search Awards.
This reputation is built on the strength of our data. With one of the largest and most reliable keyword and domain databases in the industry, Semrush provides the actionable insights needed to outperform competitors and achieve real results.
Whether you're an experienced professional or just getting started, Semrush is the platform where good marketers become great.
Types of Data Available in Semrush
Here's a breakdown of the main types of data you can get from our tools:
- Keyword analytics and rankings
- AI visibility and brand perception data
- Website traffic and audience behavior
- Backlinks
- Online advertising data (creatives, positions, and keywords)
- Website visibility across multiple device types and search engines
- Social media engagement and traffic
- Market trends and search engine volatility
- Trending topics, popular questions, and headlines
How Semrush Collects Data
We employ various methods to collect different types of information. We use only the most up-to-date data sources and clean the data using proprietary methods to present a trusted and accurate solution.
Search Engine Data (Keywords & Rankings)
For keyword analytics and search engine rankings, we partner with third-party data providers to collect Google's search engine results pages (SERPs) for hundreds of millions of the most popular keywords. We collect information about the websites that are listed in the top 100 positions. We study both organic search results and paid search results to give you a complete picture of any website’s visibility on Google.
We analyze this live and historical data to generate reports showing a website's position changes, keyword search volume, cost-per-click (CPC), and other marketing insights.
The exact method in which Semrush collects and analyzes search engine results pages (SERPs) information uses our proprietary algorithm that has been developed and optimized over the years. Keywords in global databases are automatically updated on an ongoing basis, depending on the popularity of each keyword. Updates can range from once a day to once a month; in some cases, updates for smaller databases can take a little longer.
This way, you know that the information you take from Semrush is based on the actual standings of Google’s most recent results pages.
Please check out this article to learn more about our data-collection method for domain and keyword analytics.
Website Traffic Data (Traffic & Market Analytics)
The data in our Traffic & Market toolkit comes from our panel of over 200 million real, anonymized internet users across more than 190 countries and regions. We partner with hundreds of clickstream data providers to build this panel, which records billions of events on the internet each month.
We then process this clickstream data through our Neural Network algorithm. This algorithm combines various data sources, including our backlink and organic position databases, to produce a realistic and accurate estimation of website traffic and user behavior.
Backlinks Data
Our backlink data comes from our own proprietary backlink crawler. This crawler combs through approximately 10 billion web pages daily, adding new links to our database of over 43 trillion backlinks. This allows you to get a clear picture of any website's backlink profile.
Online Advertising Data
We collect data on Google Ads (PPC) and Google Shopping ads (Product Listing Ads), sourced from trusted third-party providers. Our database contains over 1 billion Google Ads, with historical data going back to January 2012. This research helps you create more strategic and cost-effective advertising campaigns.
For deeper competitive intelligence on display, video, and social advertising, you can use the AdClarity - Advertising Intelligence app, available in the Semrush App Center. This app provides data on competitor campaigns by analyzing real-time ad occurrences across 650,000 publishers in 51 global markets. The data covers ad expenditure, placements, and buying methods for various ad types, including image, video, and social ads.
Social Media Data
To provide social media analytics, we use the public APIs of networks like Facebook, Instagram, YouTube, Pinterest, and LinkedIn. We collect public information such as likes, follower counts, hashtags, and video views to create dashboards showing a profile's audience, engagement, and growth. We never collect personal data without your consent.
Everything presented in Semrush’s Social Tracker is a collection of public information.
AI Visibility Data
Semrush’s AI Visibility Toolkit analyzes how brands appear in AI-generated answers across platforms like ChatGPT, Google AI Mode, Gemini, Perplexity, and SearchGPT. It collects and refreshes 261M+ prompts monthly, measuring visibility, mentions, competitor gaps, and cited sources.
It also collects and refreshes weekly data on brand sentiment, narratives, and share of voice with the Brand Performance reports.
And with Prompt Tracking, it provides daily data on prompt-level performance for a custom set of prompts. All of this data gives marketers actionable insights for AI search optimization.
For a more detailed breakdown of these data sources, please read our article on where the AI Visibility Toolkit's data comes from.
Semrush Database at a Glance
As of 2026, the Semrush database contains over:
- 142 geographic databases
- 27.9 billion keywords
- 808 million domains
- 43 trillion backlinks
- 500TB of raw website traffic data
- 261 million AI prompts
You can find up-to-date statistics on the size of our database here.
Which Search Engines Can Be Analyzed in Semrush?
While most of our tools work with the Google search engine, you can analyze data from other search engines in specific toolkits:
- Position Tracking: You can track your keyword positions on Google, Baidu, and Bing (top 50 results).
- Traffic & Market Toolkit: You can estimate a website's traffic from various search engines, including Google, DuckDuckGo, Bing, Yandex, and Baidu.
Which AI Platforms and LLMs Can Be Analyzed in Semrush?
Semrush allows you to analyze and track your brand's visibility across several major AI platforms and large language models (LLMs).
The AI Visibility Toolkit collects data from a wide range of platforms to provide insights on brand visibility, perception, and competitive gaps. The platforms covered include:
- ChatGPT
- Gemini
- Perplexity
- SearchGPT
- Google AI Mode
- Google AI Overviews
Additionally, you can use the Position Tracking tool to specifically monitor your daily visibility for target prompts in ChatGPT and Google AI Mode.