Discover top guides, trends, tips and expertise from AIO Writers

What is the Best Keyword Tool for Boosting SEO?

Julia McCoy
Friday, 24th Nov 2023
Julia McCoy
5 min read · Jan 11 2022
What is the best keyword tool

Ever wondered why some websites effortlessly pull in the crowds while others sit unnoticed? The answer lies in three words: keyword research tools.

These savvy software solutions are the secret sauce behind successful SEO strategies, turning digital deserts into thriving metropolises of organic traffic. Keyword search tools are your map to discovering untapped gold mines of search terms and phrases that people use online.

If you’re familiar with SEO, chances are you’ve heard of names like Content at Scale, Moz, Google Keyword Planner, Semrush, Ahrefs … But which one is truly worth its weight in digital gold?

We dive deep into these powerhouses to compare their unique features, strengths, and even potential drawbacks to help you decide what is the best keyword tool for your needs.

Let’s jump right in.

Table Of Contents:

1. Google Search Console

The Google Search Console is a vital tool for anyone aiming to improve their website’s performance in Google search results. This free keyword tool offered by Google helps you monitor, maintain, and troubleshoot your site’s presence in the search engine result pages (SERPs).

A key feature of GSC is its performance report, which provides valuable keyword data such as impressions, clicks, click-through rates (CTR), and average position for each keyword associated with your website.

You can use this information to identify high-performing keywords or discover potential opportunities with low competition but good impression counts. Knowing what terms people use when they find your content online gives you an advantage over competitors who may not be leveraging this crucial insight.

While Google Search Console may not be a traditional keyword tool like Moz, Semrush, or Ahrefs, its ability to provide insights directly from Google’s search engine makes it an invaluable resource for any content marketer or SEO professional.


  • Real-world search data: GSC provides data on the actual keywords that users are searching for to find your website. This data is directly from Google, making it a reliable source of information.
  • Understanding user intent: GSC shows you the click-through rate (CTR) for each keyword, which helps you gauge how relevant those keywords are to your content. This can help you identify keywords that are driving traffic but may not be the best fit for your content.
  • Identifying long-tail keywords: GSC can uncover long-tail keywords, which are more specific and less competitive than short-tail keywords. This can be helpful for targeting smaller, more niche audiences.
  • Tracking ranking progress: GSC allows you to track your website’s ranking for specific keywords over time. This can help you assess the effectiveness of your SEO efforts.
  • Free to use: GSC is a completely free tool, making it an accessible option for all website owners.


  • Limited keyword data: GSC doesn’t provide as much keyword data as dedicated keyword research tools. It only shows you the keywords that your website is already ranking for, not the full range of relevant keywords.
  • No keyword difficulty or competition data: GSC doesn’t provide information on keyword difficulty or competition, which can be helpful for prioritizing keywords to target.
  • Limited historical data: GSC only stores data for about 16 months, so you can’t go back in time to analyze historical keyword performance.
  • Requires some technical knowledge: To fully utilize GSC’s keyword research features, you may need some basic technical knowledge of SEO and website analytics.

2. Content at Scale

Content at Scale (CaS) is primarily known for its industry-leading AI writer that can turn out long-form, humanlike content within minutes. By adding a robust keyword research tool to complement its amazing content producer suite, it has become a truly complete content marketing solution that’s purposely built for SEO.

The Content at Scale keyword research tool stands out for its simplicity and ease of use. Unlike many of the platforms on this list, CaS lets you dig deep into keyword data without getting lost in complexities.

To begin your research, type in your seed keyword and click “Generate Keywords”. The results page will display keyword suggestions, monthly search volume, keyword difficulty, cost per click, and trends. The best keywords to target are those with low competition and enough monthly searches.

All of this data is pulled in real-time from Mangools, one of the most trusted SEO tools for marketers.

The best thing about the Content at Scale keyword research tool is that it sits right beside the powerful CaS AI writer — you can write a complete blog post from each keyword in just one click!

Want to write 5, 10, or 50 blog posts in one go? Just tick the boxes on the left to select all the keywords you want to create content for.

This will save you hours, or even days, compared to the manual process of building your keyword list on a spreadsheet and uploading them one by one to an AI writing tool or sending them to an army of freelance writers.

The action panel on the right also allows you to build a Topic Cluster around each keyword. Topic clusters are a key strategy in building domain authority in your industry.


  • AI-driven keyword suggestions: Content at Scale uses AI to analyze your content and suggest relevant keywords that are likely to drive organic traffic.
  • Keyword metrics: Content at Scale provides various metrics for each keyword, such as search volume, competition, and trends. This information can help you assess the potential value of each keyword.
  • Content optimization suggestions: Content at Scale suggests how to incorporate your target keywords into your content in a natural and effective way. This can help you improve your content’s SEO.
  • Integrated content creation: You can generate content directly within Content at Scale, making it easy to create optimized content based on your keyword research.
  • User-friendly interface: Content at Scale has a user-friendly interface that makes it easy to find and use its keyword research features.


  • Limited keyword data: Content at Scale’s keyword research capabilities may not be as comprehensive as dedicated keyword research tools.
  • Focus on content creation: Content at Scale is primarily focused on content creation, and its keyword research features may not be as robust as those of dedicated keyword research tools.
  • Relatively new tool: Content at Scale is a relatively new tool, and its keyword research capabilities may not be as well-established as those of older tools.
  • Limited historical data: Content at Scale may not provide access to historical keyword data, which can be useful for analyzing trends and identifying emerging keywords.

If you’re looking for a reliable keyword research tool that’s easy to use and allows you to ramp up your content production in no time, then Content at Scale is perfect for you.

However, if you’re an advanced SEO specialist who prefers to dig through detailed metrics, then the insights from the CaS keyword tool might not meet your needs.

3. Semrush

When it comes to keyword research, Semrush often stands out from the crowd. With its extensive suite of SEO tools, Semrush lets you dig deep into data and analytics.

Semrush is packed with features that make your SEO keyword research a breeze. Its Keyword Magic Tool offers over 20 billion keywords for different markets. But it’s not just about quantity; Semrush also gives detailed insights into keyword difficulty, search volume, and more.

The strength of Semrush lies in its versatility — from tracking your site’s rankings to analyzing backlinks or competitor sites. It even provides an easy-to-use dashboard where all these data can be viewed at once.

However, some users might find the wealth of information overwhelming at first glance while others may consider the cost as a drawback since there are cheaper alternatives available.


  • Robust Keyword Research: Semrush’s keyword research capabilities are top-notch. You can discover new keywords, analyze their search volume, and evaluate their competitiveness. It’s like having a crystal ball for predicting what your audience is searching for.
  • Competitor Insights: One of its strong suits is spying on your competitors (in a totally legal and ethical way, of course). You can see what keywords they’re ranking for, their ad strategies, and more.
  • Site Audit Feature: It helps uncover issues that might be hurting your SEO efforts such as broken links, crawl errors, and other gremlins hiding in your site’s code.
  • Backlink Analysis: Backlinks are the currency of the SEO realm, and Semrush lets you see who’s linking to your site and your competitors. It’s like having a backstage pass to the VIP party of search engine rankings.


  • Pricing: The cost of Semrush might make your wallet shed a tear. It’s a powerful tool, but it comes at a premium. If you’re on a tight budget, you might need to do some financial gymnastics.
  • Learning Curve: While the interface is user-friendly, mastering all the features can take some time. It’s like getting a new gadget with a gazillion buttons.
  • Limited Historical Data in Basic Plans: The basic plans don’t provide extensive historical data, so you won’t be time-traveling through your website’s SEO past.
  • Rank Tracking Can Be Tricky: Some users find that the accuracy of rank tracking can vary.

4. Moz Keyword Explorer

Known for its user-friendly interface, Moz is a top-tier free keyword tool that offers rich data and insights. With Moz, you get more than just basic keyword suggestions.

The flagship feature in Moz is the Keyword Explorer. It gives you an exhaustive list of keyword ideas along with their keyword difficulty scores, monthly search volumes, and priority levels.

This helps make your SEO strategy precise and targeted because you know which keywords are worth targeting. The data from Moz’s Keyword Explorer can guide your content creation efforts effectively.

One of the big advantages of Moz’s keyword research tool is its user-friendly interface. It doesn’t throw a bunch of confusing data at you – it presents things in a way that’s easy to understand. Plus, it gives you a “Priority Score” that helps you focus on the keywords that can make the most impact.

A unique strength of Moz lies in its SERP analysis feature. This allows users to analyze who’s ranking on search engines for specific keywords, offering valuable competitive intelligence.

You not only learn about your competition but also get ideas on how to outperform them by optimizing your content better or leveraging underused long-tail variations.

The main drawback is that some users have reported a steeper learning curve with certain advanced features like Link Explorer or Site Crawl Report.


  • Accurate and Reliable Data: Moz is known for providing accurate and reliable data, especially when it comes to keyword research.
  • User-Friendly Interface: Moz has a user-friendly interface that won’t make your head spin.
  • Keyword Difficulty Analysis: Moz does a solid job of helping you gauge how challenging it is to rank for a specific keyword.
  • Site Crawl and Audit: Moz is not just about keywords; it also delves into the nitty-gritty of your website’s health. With its site crawl and audit features, you can spot and fix issues that might be holding back your SEO success.
  • Link Profile Analysis: Backlinks are the lifeblood of SEO, and Moz allows you to dissect your link profile.


  • Limited Keyword Suggestions in Basic Plans: If you’re on a tight budget, you might find the keyword suggestions somewhat limited in the basic plans.
  • Learning Curve for Advanced Features: While the basics are user-friendly, diving into the more advanced features might require a bit of a learning curve.
  • Pricing Tiers: Like many powerful tools, Moz comes at a cost. The pricing might be a tad steep for smaller businesses or individuals just starting their SEO adventure.
  • Limited Historical Data in Basic Plans: Similar to Semrush, historical data in basic plans is limited.

5. Google Keyword Planner

When it comes to keyword research, Google’s own Keyword Planner is a formidable tool. As part of the Google Ads suite, this utility helps you uncover Google trends and relevant SEO keywords for your content.

The real strength of the Keyword Planner lies in its ability to provide data directly from Google’s vast search database. The Keyword Planner provides information straight from the source, giving you reliable keyword suggestions.

A standout feature of this search tool is its comprehensive metrics reporting. It gives valuable details like average monthly searches, competition level, and suggested bid estimates for AdWords users.

Beyond these figures, another plus point is its Google trends analysis capability. By displaying search volume trends over time for any given keyword or group of keywords, it lets marketers plan their strategies around seasonality or emerging patterns.

One potential drawback of this keyword generator is that if you don’t run active ad campaigns on Google Ads, the data presented may be in broad ranges rather than specific numbers which could limit precision in planning SEO efforts.

Also noteworthy: despite being a free keyword search tool, there might still be a learning curve involved, especially navigating through a somewhat complex interface built originally with advertisers (not SEO) in mind.


  • It’s Free: Google Keyword Planner won’t charge you a dime for its services.
  • Integration with Google Ads: If you’re running ad campaigns on Google, the integration with Google Ads is seamless. You can easily transfer your keyword research insights into your ad strategy.
  • Keyword Suggestions: Google Keyword Planner provides a plethora of keyword suggestions based on your input.
  • Search Volume and Competition Insights: You get a sneak peek into the search volume and competition level for each keyword.


  • Focused on PPC: While it’s great for advertisers, the tool is primarily designed for Google Ads users. If you’re looking for in-depth SEO insights, you might find it a bit limited.
  • Limited Keyword Variations: The suggestions might be a bit basic compared to other tools. If you’re after a diverse range of keyword variations, you might need to complement it with other tools.
  • Lacks Advanced SEO Metrics: If you’re an SEO pro hungry for advanced metrics and analytics, Google Keyword Planner might feel like an appetizer rather than a full-course meal.
  • Requires Google Ads Account: To access all the features, you need to have a Google Ads account.

6. Ahrefs

Ahrefs is a keyword research tool that consistently ranks high among SEO professionals. Its unique features offer valuable insights for digital marketers.

The power of Ahrefs lies in its comprehensive data collection and analysis capabilities. It allows users to track keywords, analyze backlinks, and monitor website rankings.

This robust SEO tool also gives the ability to examine competitors’ websites thoroughly. You can glean insights about their top-performing content, which you could use as inspiration for your own strategy.

Ahrefs does have some limitations, the main one being its price point. Starting at $99 per month, it might be too expensive for smaller businesses or individuals just getting started with SEO.

In addition, while it offers extensive data and analytics options, newcomers may find navigating through all this information daunting at first glance.


  • Extensive Backlink Analysis: Ahrefs shines when it comes to backlink analysis. It allows you to see who’s linking to your site and your competitors.
  • Comprehensive Keyword Data: Ahrefs offers a robust keyword database with accurate search volume data, guiding you to the most valuable keywords for your content.
  • Competitor Analysis: Ahrefs lets you peek into your competitors’ keywords and backlinks, and even see what pages are ranking well.
  • Rank Tracking: Keep tabs on your website’s performance with Ahrefs’ rank tracking feature so you know when you hit the top of the search results.
  • Site Audit Feature: Ahrefs acts as your SEO doctor, conducting thorough site audits to diagnose and fix issues that might be holding back your site’s performance.


  • Price Tag: Ahrefs’ power comes at a price. It might be a bit steep for those on a tight budget. It’s amazing but it comes with a premium cost.
  • Learning Curve: With great power comes a bit of a learning curve. Ahrefs has a plethora of features, and while they’re powerful, it might take some time to master them all.
  • Limited Historical Data in Basic Plans: If you want to analyze your site’s SEO journey, you might find the historical data limited in the basic plans.
  • Focused on SEO: While Ahrefs is a beast in the SEO realm, if you’re looking for a tool that covers a broader spectrum of digital marketing, you might need to complement it with other tools.

7. AnswerThePublic

If you’re looking for a free keyword tool that’s intuitive and insightful, AnswerThePublic should be on your radar. It presents search queries in an engaging visual format, making it easier to understand user intent.

The strength of this search tool lies in its ability to generate questions people are asking about your keywords. This helps content creators target topics that resonate with their audience.

You might find the data visualization feature particularly useful. It categorizes search terms into five Ws (who, what, when, where, and why), how-to’s, and comparisons – a great help for planning content strategies around long-tail keywords.

AnswerThePublic also offers Pro features that give more detailed insights such as trending searches or data comparison over time. Do note that there is a cost associated with these premium offerings.

To maximize the benefits of using AnswerThePublic, start by entering broad terms related to your industry or niche into the search bar. The results will give you numerous angles from which to approach these topics in future articles or blog posts.

An added advantage? You can set location-specific queries giving more targeted suggestions relevant to local SEO campaigns — another strong reason why this tool has won favor among digital marketers worldwide.


  • Visual and Engaging: AnswerThePublic presents keyword data in a visually appealing and easily digestible format.
  • Content Ideas Galore: AnswerThePublic generates content ideas based on the questions people are asking online. It’s like having a direct line to your audience’s thoughts.
  • User-Friendly Interface: AnswerThePublic is user-friendly, making it accessible even for those new to keyword research.
  • Free Version Available: Budget-conscious? The free version of AnswerThePublic provides a decent chunk of functionality.


  • Limited Data in Free Version: While the free version is great, it comes with limitations. If you want more in-depth data and insights, you’ll have to consider the pro version.
  • May Require Supplemental Tools: AnswerThePublic is fantastic for content ideas, but if you need more comprehensive keyword metrics or competitor analysis, you might need to pair it with other tools.
  • Focused on Question-Based Queries: If your keyword strategy is more focused on other types of queries, AnswerThePublic’s emphasis on questions might not align perfectly with your needs.
  • Not Ideal for Highly Niche Keywords: For super niche industries or topics, AnswerThePublic might not provide as much granularity as some other tools.

8. Serpstat

For your keyword research needs, Serpstat is a solid choice. This tool stands out because it not only gives you the keywords but also provides SEO analysis and competitor research.

Serpstat boasts an extensive database that can give detailed insights into global markets. It helps to understand what works in different locations and how your competition operates there.

This search tool allows for deep URL analysis which means you can drill down into specific pages on any site. You get data like page visibility, top keywords, and incoming links — information crucial for optimizing your content strategy.

A unique feature of Serpstat is its tree-view diagram showing all the keywords a domain ranks for along with their corresponding URLs. With this view, you’re able to see exactly where each keyword is ranking within individual web pages.

The backlink analysis function of Serpstat makes sure no potential linking opportunity goes unnoticed. The quality of these links is evaluated using 15 parameters so that nothing harmful slips through either.

Compared to other premium tools in the market, Serpstat offers more affordable plans without compromising on features or performance; hence delivering high value for money.


  • Affordable Pricing: Serpstat is often praised for its affordability compared to some other comprehensive SEO tools.
  • All-in-One SEO Platform: Serpstat isn’t just about keywords; it offers a suite of tools including backlink analysis, site audit, and competitor research.
  • Competitor Analysis: Dive deep into your competitors’ strategies. Serpstat lets you peek into their keywords and backlinks, and even assess their SEO strengths and weaknesses.
  • Search Analytics: Track your website’s performance over time and see how it stacks up against the competition.


  • Learning Curve: While it’s a powerful tool, Serpstat might have a bit of a learning curve for newcomers. You’ll need some time to figure out all the features.
  • Interface Could Be More Intuitive: Some users find that the user interface isn’t as user-friendly as they’d like.
  • Less Extensive Backlink Data: While Serpstat provides backlink data, it might not be as extensive as what you get from some other tools.
  • Keyword Difficulty Metric Could Be More Accurate: Some users mention that Serpstat’s keyword difficulty metric may not always align perfectly with their real-world experiences.

9. Soovle

If you’re on the hunt for a versatile keyword search tool, look no further than Soovle. Not just your average free keyword research tool, Soovle lets you explore popular search terms from multiple sources, not just Google.

This feature makes Soovle a standout among its peers. But what really sets it apart is its simplicity and efficiency. Just type in your seed keyword and watch as Soovle generates top keywords across various platforms including Amazon, Wikipedia, and YouTube.

The ability to see top keywords from different platforms can give you unique insights into user behavior. For instance, the most searched terms on Amazon could help inform product-focused content while trending topics on YouTube might be perfect for video marketing strategies.

However, keep in mind that while Soovle provides quick results with diverse data points; it doesn’t offer an extensive analysis of each term like some other tools do. Hence if detailed metrics such as search volume or competition level are important to you, another tool may serve you better.

Soovle serves up valuable multi-platform insights at speed — making this free-to-use tool quite handy when crafting broad-ranging digital content strategies or seeking out untapped niches within the marketplace.


  • Unified Search Across Multiple Platforms: Soovle provides keyword suggestions from various platforms like Google, Bing, YouTube, Amazon, and more.
  • User-Friendly Interface: Soovle keeps things simple and user-friendly, perfect for beginners.
  • Quick Keyword Inspiration: If you’re in need of a creative spark, Soovle delivers keyword suggestions lightning-fast. It’s like having a brainstorming session on turbo mode.
  • Free to Use: The best things in life are free, and Soovle is no exception. Dig into its keyword data without spending a dime.


  • Limited Data Metrics: While Soovle is great for generating keyword ideas, it doesn’t provide the in-depth metrics that some other tools do. If you’re craving more detailed insights, you might need to complement it with another tool.
  • Not Ideal for Advanced Analysis: Soovle is more of a quick inspiration tool than a comprehensive analytics powerhouse. If you’re a data aficionado, you might find it a bit lacking in the analytics department.
  • No Competitor Analysis: Unlike other tools, Soovle doesn’t provide features for spying on your competitors’ strategies.
  • Limited Customization: While simplicity is a strength, it also means limited customization options. If you’re a power user who loves to tweak every setting, you might find Soovle a bit too straightforward.

10. TopicRanker

Among the vast sea of keyword tools, TopicRanker shines through with its unique capabilities. It’s a tool that brings depth and precision to your SEO strategy.

The power of TopicRanker lies in its robust algorithm. It digs deep into search engine data to give you an edge over competitors. Not only does it identify relevant keyword ideas but also ranks them based on their potential impact on your website traffic.

This innovative tool takes user intent seriously by focusing not just on what people are searching for, but why they’re searching for it. This level of understanding allows you to create content that answers questions before users even ask them.

In terms of usability, TopicRanker is intuitive and easy to use — no steep learning curve here. Its straightforward interface makes conducting comprehensive keyword research as simple as clicking a button.

A key strength worth noting is how this software helps strategize long-tail keywords — those highly specific phrases that often lead to higher conversion rates.

If there’s any drawback, it might be the lack of historical data provided compared with other established tools like Moz or Semrush. But let’s remember: every tool has room for improvement and growth.

If actionable insights backed by advanced technology sound appealing to you, then give TopicRanker a try.


  • Topic-Based Keyword Ideas: TopicRanker is all about topics rather than individual keywords.
  • User-Friendly Interface: Navigating TopicRanker is a breeze.
  • Visual Representation: TopicRanker presents data in a visual and intuitive way. It’s like turning your keyword research into a beautiful mind map – organized and easy to understand.
  • Content Expansion Opportunities: It helps you discover related topics, allowing you to expand your content strategy.


  • Limited Keyword Metrics: If you’re a data enthusiast craving detailed metrics, TopicRanker might feel a bit light.
  • Not Ideal for Detailed Competitor Analysis: While it’s great for generating content ideas, TopicRanker doesn’t delve deep into competitor strategies.
  • Focused on Content Themes: If you’re looking for individual, high-volume keywords, TopicRanker’s approach might not align perfectly with your needs.
  • Limited Customization: The tool is straightforward, which is great for simplicity, but if you’re a power user who loves tweaking settings, you might find it lacking in customization options.

FAQs – What is the Best Keyword Tool

Which keyword tool is most accurate?

Moz and Ahrefs often top the charts for accuracy. But, keep in mind that each tool has its strengths depending on your SEO needs.

Which is the best tool for keyword research?

The ‘best’ can vary based on personal preference and specific goals. Google Keyword Planner, Moz, and Semrush are all strong contenders though.

How do I find the best keywords to search?

To find killer keywords, use tools like Content at Scale or AnswerThePublic. These provide data-driven insights about trending searches related to your topic.


Keyword tools are the backbone of successful SEO strategies, as they unlock search term gold mines. Whether it’s Content at Scale or Moz, each tool has unique features to help you drive organic traffic.

The question remains: what is the best keyword tool?

Ultimately, the best keyword research tool for you depends on your specific requirements and the depth of analysis you seek. Whether you opt for the straightforward approach of Content at Scale, the comprehensive capabilities of Ahrefs and Moz, or the specialized capabilities of Soovle and TopicRanker, the key is finding the one that aligns with your goals and workflow.

Ready to create hundreds of blog posts around the right keywords? Try Content at Scale today.

10x your blogging with AI. Download our free guide to learn how.

10x your blogging with AI. Download our free guide to learn how.

Written by Julia McCoy

See more from Julia McCoy

Long Headline that highlights Value Proposition of Lead Magnet

Grab a front row seat to our video masterclasses, interviews, case studies, tutorials, and guides.

10x your blogging with AI. Download our free guide to learn how.

10x your blogging with AI. Download our free guide to learn how.

What keyword do you want to rank for?