Search volume is one of the first metrics considered when planning content and selecting keywords for SEO. It allows us to estimate the level of interest in a given term and helps us decide whether it's worth creating content for a specific query.
In this article, we show you how to check the search volume for a keyword using various methods – from free Google features to professional tools – and how to read these numbers correctly.
What is keyword search volume and what does it really mean?
The number of keyword searches, also known as search volume, is the estimated number of queries for a given phrase in a search engine during a selected period.
It's most often reported as a monthly average, but in most tools, you can set the range you're interested in – you can check the average value for the last year or track how search volume changed month to month. If the tool shows a value of 1000 for a given phrase, it means that on average that number of searches occurred for that phrase during the analyzed period.
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It's important to understand one thing from the outset: volume is an approximate, averaged value, not a precise count. The actual number of queries in a given period may be higher or lower, especially for seasonal queries. Furthermore, search volume doesn't equal the number of visits a website receives for a given phrase – even a top-ranked position in the results only receives a fraction of clicks, and the growing share of searches ending without a click further reduces this pool.
For this reason, search volume is best viewed as an indication of interest in a topic, rather than a promise of traffic. It's a starting point for further analysis, which we describe at the end of this article.
What is the difference between search volume and phrase popularity?
It's also worth distinguishing two concepts that are sometimes confused. Search volume refers to the number of times a given phrase is entered, while keyword popularity is a broader concept that also encompasses how interest in a term changes over time. Some tools provide hard numbers, while others—like Google Trends—only show relative popularity, without specific volume.
How to check the popularity of a phrase in Google without a tool?
The simplest methods are available directly in the search engine and don't require logging in or installing a plugin. Search suggestions (autocomplete) appear as you type, showing how searches most often end. This is a good way to discover long-tail phrases and real-world phrases used by users.
The second feature is a section with similar searches or suggestions for what other users have asked – there you will find related questions.
These methods, however, have a significant limitation: they show what people are searching for, but don't provide numbers. They don't tell us whether a given phrase receives 100 or 100 searches per month. Dedicated tools are required to estimate specific volumes.
Free tools that show specific volume
Google Keyword Planner is a basic free tool available after logging in to your Google Ads account. It provides average search volume, trend data, and related phrase suggestions, and you can narrow your results by language and location, even down to the city level.
The data comes directly from Google, which is a plus, but the tool groups similar searches, meaning closely related phrases can share the same volume. We've covered more about how Keyword Planner works in SEO and Google Ads campaigns in a separate article. There's also one catch: accuracy depends on whether the account is running a campaign. Accounts without an active ad campaign only see volume in broad ranges, such as 1 to 10, and specific numbers only appear after launching even a small campaign.
Google Trends works differently – it doesn't show search volume, but rather the relative popularity of a phrase on a scale of 0 to 100. A value of 100 indicates the peak interest in a selected period, not a specific number of queries. The tool is useful for comparing interest across multiple terms and for analyzing seasonality, i.e., when a given query gains popularity. It also allows you to narrow down the data by country, time period, and topic category. This is a tool for observing trends, not for measuring volume.
Free keyword analysis tools
It's also worth exploring the free Ahrefs keyword generator and the Keyword Surfer Chrome plugin, which displays estimated volume directly alongside Google search results. Both options provide approximate numbers without the need to purchase a paid plan, although the data scope in the free version is limited. For many people, this level of accuracy is sufficient to start with – it allows them to distinguish popular phrases from niche ones before deciding to invest in a paid tool.
Paid tools for in-depth analysis
Once keyword work becomes regular, free methods are no longer sufficient. Paid tools offer larger keyword databases, more accurate estimates, and additional metrics such as keyword difficulty and traffic potential.
Ahrefs and Semrush are the two most popular solutions on the global market. Both provide volume, keyword difficulty, and extensive suggestions for related phrases, and Semrush also offers a 7-day trial period. Senuto, on the other hand, is valuable for the Polish market, as it handles local keywords well and offers a free trial period to test its features.
The choice of tool depends on the scale and market: free options are sufficient for occasional analysis, Senuto works well for systematic work on Polish phrases, while Ahrefs and Semrush are stronger when analyzing competition and foreign markets.
Why do different tools show different numbers for the same phrase?
Anyone who first compares the volume of the same phrase across multiple tools is usually surprised, as the numbers can vary significantly. This is a result of where the tools get their data.
Why do different SEO tools report different search volumes?
Keyword Planner relies on data from Google itself, but groups similar queries and provides ranges. Tools like Ahrefs and Semrush use clickstream data (analysis of real user behavior online) and proprietary estimation models, which means their numbers are calculated differently than Google's. Each tool also has a different database size and freshness.
For this reason, volumes from two different tools should not be compared. It's more prudent to stick with a single source as a reference point and treat the numbers as orders of magnitude rather than precise values. All these data are estimates.
Volume isn't everything. How do we read the number in a broader context?
Search volume alone doesn't indicate whether a given phrase is worth pursuing. High volume can be tempting, but it often indicates stronger competition and less specific user intent. For this reason, the number must be considered in conjunction with several other factors.
The first is search intent —what the user is actually looking for. A high-volume, yet purely informative phrase will attract readers, not necessarily customers. Long-tail phrases have lower volume but often convert more efficiently because they address a specific need.
Seasonality and the zero-click phenomenon
The second factor is seasonality , which is worth checking in Google Trends, especially for seasonally dependent industries. The third is the zero-click phenomenon , meaning searches that end without a click on the result. Their share is growing, in part, thanks to the development of AI-generated answers directly in the search engine. A high-volume phrase that appears immediately in AI Overviews may generate significantly fewer hits than its search volume would suggest.
How is keyword research changing in the era of AI search?
The rise of AI-powered search engines and assistants like ChatGPT is changing the way people formulate search queries. These are increasingly becoming complete questions and conversational phrases, rather than single terms . Instead of "phrase volume," users are asking "how to check keyword popularity."
For keyword research, this means that, in addition to classic volume, it's worth analyzing the questions users ask, as well as longer, more natural phrases. Tools that display related questions and question phrases are gaining importance here.
This direction aligns with GEO, or generative search engine optimization , where not only positioning in traditional search results matters, but also brand presence in AI responses. This doesn't mean that traditional volume ceases to be important – it's still the foundation of content planning, but it's no longer the sole point of reference.
Frequently asked questions about keywords
Volume analysis allows you to assess the level of interest in a given topic. This allows you to avoid investing time and budget on terms that no one is searching for, and instead focus on phrases that actually generate valuable traffic to your website.
The most popular free solution is Google Keyword Planner, available in the Google Ads dashboard. It allows you to check average search volume, analyze seasonality, and generate new ideas for related phrases. It's also worth using the free Google Trends.
Professional platforms like Ahrefs (Keyword Explorer feature) and popular Polish tools like Senuto and Semstorm are ideal for precise analysis. They provide accurate search data and allow for highly specific user queries.
Yes. Tools like Senuto, Semstorm, and Ahrefs allow you to analyze your competitors' URLs. This will help you learn which keywords your rivals are ranking for and which phrases are driving the most traffic.
No. In addition to search volume, you should also consider the competitiveness (difficulty) of a given phrase. Long-tail phrases are often a better business choice. They have lower search volume, but are less competitive, and typically convert better (attract customers ready to buy).
Summary
The above article covers the following topics:
- Defining the number of searches for a keyword as an approximate, average value that does not equal the number of visits.
- Free ways to check phrase popularity directly in Google.
- Free tools that provide specific volume, including Keyword Planner, Google Trends, and Keyword Surfer.
- Paid tools for in-depth analysis and tips on which to choose depending on your needs.
- Reasons for volume differences between tools.
- A way to interpret search volume in the context of intent, seasonality, and the zero-click phenomenon.
- Changes in keyword research due to the development of AI-based search.
