5 Best Keyword Research Tools to Boost Your Organic Traffic

Is a lack of organic traffic costing you sales? In this guide, we’re sharing our picks for the best keyword research tools to help you boost your traffic.

If people can’t find your site in search results, you’re missing out on traffic, leads, and sales. One of the best ways to solve that problem and boost your traffic is with keyword research tools.

Keywords are important for increasing organic traffic because searchers only find content if Google thinks it’s relevant to what they’re searching for. Google uses keywords as an important SEO ranking factor. That means that the best way to help search engines understand that your content is relevant is to include, in a natural way, the same exact terms that people are typing into Google to find you.

Use the right terms, and your content will be more visible in search engine results pages (SERPs), resulting in more clicks and more organic traffic.

So, how do you discover which terms people are using to try to find your content? By including keyword research tools in your content marketing toolbox.

One of the advantages of using keyword research tools is to get more terms you can use in your content, backed by data on popularity, usage, and more. Our last keyword research guide covered why keyword research is relevant, types of keywords, understanding keyword intent (what searchers want), and much more.

For each of our picks for the best keyword research tool in this post, we’ll walk you through how to find keywords you can use to optimize your content for better search positioning.

Recommended Resource: Need more website traffic? Learn how to rank #1 on Google with our Ultimate Guide to SEO.

Interested in a specific keyword research tool? Skip to the one you want:

How to Get Started: Brainstorming Seed Keywords

While keyword research tools are all different, they all work in basically the same way: you have to start by typing in keywords to learn more about them and get ideas for related keywords.

That means that before you get started using keyword research tools, you need to have an initial list of keywords to research.

How do you come up with those initial keywords, also called seed keywords?

The best way to to start is simply by using your own common sense and brainstorming terms related to your topic.

Start by defining your broad topic – let’s use “health insurance” as our example.

From there, you can brainstorm some more specific terms.

If you’ve created buyer personas, also called customer avatars, this step will be much easier. You’ll be able to put yourself in your readers’ shoes and imagine what they would type into Google to find your content.


Continuing with our health insurance example, “health insurance benefits calculator” is a more specific term that your target audience might be interested in searching. Try to come up with at least 5 specific ideas along those lines.

After you’ve brainstormed a list of specific keyword ideas to research, you’re ready to get started on your research.

1. SEMrush

semrush home

SEMrush provides a huge amount of data to help you with search marketing. You can test it out with a free keyword search from the home page.

However, if you want to do multiple keyword searches, you’ll have to upgrade.

How to Use SEMrush

Login to your account and click on Organic Research in the left sidebar.

semrush organic research

Go to Overview and type your chosen search terms into the search box.

semrush enter search terms

Remember, you’ll have brainstormed some of these at the start of your keyword research process. We’ve used “b2b content marketing”.

Press Search. The results will come up in a dashboard showing search volume, paid search (the cost of paying for placement in search results for that keyword), cost per click distribution and search trends.

semrush keyword overview

SEMrush also includes data on the top pages ranking for particular keywords. You can use this information to come up with ideas for new topics to cover on your blog.

Start by scrolling down to see Phrase Match Keywords (those that include your search term exactly) and Related Keywords.

semrush phrase match and related keywords

These will give you some initial ideas for keywords to include in your content. The Related Keywords report is important because it may contain terms you haven’t yet optimized your content for.

To get more detail on related keywords, click on View Full Report.

This will take you to the Keyword Magic tool.

semrush keyword magic tool

Click Search to bring up a table filled with data about your chosen keyword. You see:

  • How closely they’re related to your original search term (shown as a percentage)
  • Keyword search volume (how many searches are performed)
  • Keyword difficulty ranking
  • Number of search results
  • Search trends

Click on any keyword to get a similar report for that keyword.

semrush related keyword detail

Sort SEMrush data by any column to get new insights. For example, you can sort by keyword difficulty to identify keywords related to your content with a low to medium keyword difficulty that you could use to optimize content.

semrush sort by column

Jot down content keyword ideas as you go through SEMrush. Even better, you can export keywords at any time, just by clicking the Export button.

semrush export


SEMrush pricing starts at $99 per month, which includes access to keyword analytics, site position tracking, social media tools, content optimization tools, and much more.

2. Ahrefs

Ahrefs competitor analysis tool

Ahrefs is an incredibly rich collection of tools, with data on trillions of links. For this guide, we’re going to focus on the Keywords Explorer, which is one of the best keyword research tools around.

How to Use Ahrefs

Login to Ahrefs, then navigate to the Keywords Explorer.

ahrefs keyword explorer

Type some terms related to your topic into the onscreen search box. You can have up to 100. Choose your country. Ahrefs includes keyword data for dozens of countries. For this guide, we’re using the US.

ahrefs keyword research

Press the search icon. You’ll be redirected to a new screen which shows an overview of the keywords you entered.

ahrefs keyword overview

Click on one of the keywords to bring up an overview just for that keyword.

ahrefs graphical keyword overview

You’ll immediately be able to see the Keyword Difficultly for this keyword. Keyword Difficulty (KD) is how hard it will be to rank for a specific keyword; the higher the KD, the harder it will be to rank for that keyword.

Further down the page, you’ll see the Keyword ideas section.

ahrefs keyword ideas

This is where you’ll start getting ideas for content keywords. The Keyword ideas section is divided into 4 columns showing:

  • Results for the terms you entered
  • Questions related to your keyword
  • Other keywords from the top 10 pages that rank for your keyword
  • Newly discovered keyword search suggestions

For each, you can click the View all link for more details.

Let’s look at the full report for keywords that include the original search term of “content marketing.” This will help you identify related content areas that you might not have covered yet.

ahrefs having same terms full report

The data appears in a table, with a list of related terms. To get full information on each term, click on the term. This will bring up the keyword overview for that term.

The Clicks column shows the average monthly number of clicks the keyword gets from searchers. That’s a good indicator of potential traffic.

It’s also worth paying attention to the Parent topic for each search term. Ahrefs groups its results into a number of parent topics. For example, if you search for “b2b content marketing,” the parent topic is “content marketing.”

Clicking on the parent topic link can lead you to more keywords to use in your content, and help you to find sub-topics around which to create or optimize content. You can also see how the topic and sub-topics rank in search engine results.

ahrefs detail about parent topic

Be warned, with so much information, you can spend a lot of time doing keyword searches on Ahrefs. That’s why it’s helpful to keep track of your research by making a note of:

  • Keywords that you can use to optimize existing content
  • New keywords you hadn’t previously thought of
  • Related topics you might want to cover on your blog

You can do this with pen and paper, or create your own spreadsheet (recommended). If you use a spreadsheet, then it’s helpful that Ahrefs allows you to download potential content keywords by clicking on the Export button at the top of any table.

ahrefs export table


You can try out Ahrefs for a week for just $7. After that, it’s just $99 a month for the whole suite of tools, which include their Site Explorer, Content Explorer, and much more.

3. MonsterInsights

monsterinsights landing page

MonsterInsights is the best way to add Google Analytics to your WordPress website. You can get going with just a few clicks and have access to all the info you need to make data-driven decisions that will keep traffic humming.

Plus, it’s a great way to make sure your keyword research is on track and find ways to improve it.

To get started, you’ll need to sign up for MonsterInsights. Then, download and install the MonsterInsights plugin. You can follow these instructions to add MonsterInsights to your WordPress account.

How to Use MonsterInsights

There are 3 MonsterInsights reports that are particularly helpful for keyword research: Publishers, Search Console, and Custom Dimensions.

Search Console Report

monsterinsights search console report

The Search Console report shows your top 50 Google search terms, as well as the number of clicks and impressions, clickthrough rate (CTR), and your average position in search results.

This report will tell you what topics do well for your audience so you can write more about it.

If you haven’t already connected Google Analytics to Google Search Console, you can learn how to do it from this post at MonsterInsights.

Custom Dimensions Report

monsterinsights custom dimensions report

The Custom Dimensions report shows whatever custom data you want to set up and track. For example, you can track data like:

  • Which author’s posts generate the most traffic
  • The keywords you’re using and which ones are doing well in search engines
  • SEO score tracking to see which blog SEO scores are the most popular
  • Which categories on your site are clicked the most
  • Which custom post types are the most well-liked by site visitors

With this report, you can collect and analyze data that matter to your website—even if Google Analytics doesn’t automatically track it.

Click here to learn how to set up custom dimensions in Google Analytics.

Publishers Report

monsterinsights publishers report

The Publishers report shows a lot of information. While it’s mostly geared towards content, you can also use this information to make more money with your eCommerce store, too.

This report shows information like:

  • Landing Pages
  • Exit Pages
  • Outbound Links
  • Affiliate Links
  • Download Links
  • Demographics
  • Interest Categories


Pricing starts at $99.50/year.

4. AnswerThePublic

answerthepublic landing page

AnswerThePublic is one of the quirkiest SEO keyword tools around, and you can’t beat the price tag of free.

While you can use AnswerThePublic for any kind of keyword research, it really shines as a way to help you find the questions people are actually asking.

This is important because people don’t just type queries into search engines anymore; they also search by voice, often via their mobile devices. That means searches are often in a question format, rather than simply being a typed keyword phrase.

AnswerThePublic is one of the best keyword research tools to help you find these questions, so you can optimize your content and boost organic traffic.

How to Use Answer the Public

Type your search term into the search box on the homepage of the AnswerThePublic website. We’re using “content marketing”.

answerthepublic search term

Use the onscreen selector to change the language if desired. Press Get Questions or use the enter key. You’ll be redirected to another page with all the questions.

By default, the questions are displayed in a big wheel, with each of the key question words leading to related questions. The question words include who, what, why, where, when and how, as well as others like can, which, are and will.

answer the public search results

Scroll down the page to see other question wheels with questions relevant to your search using prepositions, comparisons, related terms and more.

AnswerthePublic answer detail

There’s even a list of search terms combined with different letters of the alphabet.

answerthepublic alphabetical graphic

If you prefer not to use the wheel interface, you can click the Data button above any section to display the results in a table. Click the Visualization button at any time to return to the default display.

answerthepublic keyword data view

Similarly, you can download results both as images and as spreadsheet files.

atp download csv

As with other keyword suggestion tools, you can use AnswerThePublic to quickly get content ideas, and explore ways to add value to your existing content.

For example, click on any question to go to the related Google search page.

google search results page from answerthepublic

That can point you to other questions you might find useful. Exploring the Google search results can also help you assess how people have previously covered a topic, so you can see if there’s a new angle or another way to make your own content more valuable. That’s a great way to boost organic traffic rankings.

And don’t forget that answering questions well can lead to getting featured snippets which appear above the search results, so AnswerThePublic can help you spot those opportunities, too. That’s why it’s one of the best keyword research tools around.


AnswerThePublic has a free plan! You can go pro for $99/month.

5. SEOBook Keyword Suggestion Tool

seobook keyword tool

The SEOBook Keyword Suggestion Tool is one of several free SEO tools from SEOBook. However, you’ll have to sign up for a free account to use it.

This keyword search tool includes a wealth of information when you search, including search volumes, related results and phrases, and the estimated cost per click (CPC) for any keyword you input. You can also click a box to see Google Trends results.

How to Use SEOBook Keyword Suggestion Tool

To get started, put your keywords into the onscreen search box, and press Submit.

seobook enter keyword

You’ll get a table with related phrases, and the United States and UK monthly search volume. You’ll also see daily search volume for Google, Bing, and Yahoo. Click on any of the underlined numbers to go directly to the search engine page for that query.

seobook keyword tool search results

Each keyword phrase also has a CPC (cost per click) value. This tells you how popular the keyword is for advertising, and therefore how likely it is that people will be searching for it.

Click on any result to see the same data for related searches for that term.

seobook related terms search

You can also export search results in spreadsheet format at any time.

seobook export to csv

As with other tools, the SEOBook Keyword Suggestion Tool is useful for identifying phrases to include in existing content, or to help you create new content around topics where there’s an opportunity.



6. Google Ads Keyword Planner

google ads landing page

The Google Ads Keyword Planner tool is intended to help people find the right keywords to bid on for pay per click and paid search marketing.

However, it also functions as a great way to figure out which keyword phrases you can use in your content to boost your organic traffic. That’s because it draws on all the data Google has on searches performed via its own search engine. The price tag—it’s free—is just one of the reasons it’s made our list of the best keyword research tools.

How to Use Google Ads Keyword Planner

You’ll need a Google Adwords account to get started. Click on the three-dot menu, then click Tools & Settings » Planning » Keyword Planner. The tool will launch in a new window.

google ads keyword planner

To find content keywords, we’ll use the section that says Discover new keywords.

google ads find new keywords

There are several boxes you can fill in here. You can:

  • Enter your product – this is a good place to put a couple of keyword phrases to start with.
  • Input the URL of your landing page – this option is primarily for those buying ads, but entering the URL of a page you’re planning to optimize can throw up some useful options.
  • Choose a product category – again, this makes more sense for ad buyers but can result in some desirable keywords.

For this tutorial, we’re going to focus on entering keywords into the product field. We’ll use “content marketing”.

google ads search

Next, click on Get Results to go to the results page.

google ads search results

In the table, you’ll see:

  • Average monthly search volume, which gives a broad indication of how popular keywords are
  • Competition, which will match the parameters you set earlier
  • Suggested bid (shown as low and high ends of the range). This is for ad buyers, but it’s worth knowing that the higher the figure, the more popular the keyword is, and the better the indication of commercial intent.

Related Content: What’s a Good CTR for Google Ads + How to Improve Yours

You’ll be able to add filters and a date range for your search from here, too.

Click on the download button to export your results to a spreadsheet to explore them later.

download keyword ideas from google ads

The results page also includes a Grouped ideas tab. This is worth exploring, as it includes broad topic groups that can be useful for focusing content. Click on any of them to see what keywords are included.

google ads grouped keyword ideas

As with other tools, make a note of keyword phrases and topics that interest you. You can follow the same process to run another keyword search and refine your content keywords even further.



Wrapping Up

That’s it! Whether you use a single keyword research tool or combine all of our picks for the best keyword research tools, you should end up with a list of relevant keywords to integrate into your existing content, as well as some ideas for creating new content.

Use keywords in page titles and descriptions, as social media hashtags, and wherever it’s appropriate in your content, focusing on making it relevant to your audience, and readable, too.

Recommended Resource: What’s next? How do you use your keywords without keyword stuffing? See our guide on SEO Made Simple: Where & How To Use Keywords in Your Content to use your keywords the RIGHT way.

Don’t forget to also perform an SEO audit to catch any errors tanking your traffic, and identify opportunities to boost your rankings even more.

In addition to content marketing, using keyword research tools will also help you with SEO, lead generation and email marketing.

Once your content is ready, try testing its effectiveness with split testing so you can optimize it even further, and boost your organic traffic even more.

Finally, don’t forget to follow us on Facebook and Twitter to keep up to date with upcoming guides and tutorials.

Jacinda Santora
Jacinda Santora is a writer specializing in ecommerce and growth marketing. She prides herself on her ability to make complicated things easier. When she isn't writing you can find her daydreaming about campervans, drinking coffee, and listening to podcasts.


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  2. Good article, like the customer avatar page you linked to. I think you missed a good one, Keywordtool.io. Their metrics and operation are super easy to use, and their related keywords and FAQ lookup tab make it even easier to get all the shoulder niches and info needed to see the market imo..

    1. Sharon Hurley Hall November 10, 2017 at 5:11 am

      Thanks for the tip, Justin. 🙂 Our expert roundup on SEO tips for the coming year is a useful follow-up to this article.

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