Best Keyword Research Tool For Affiliate Marketing

Everyone is looking for the best keyword tool for affiliate marketing. Don’t waste your time on crappy keyword research tools. Use these top affiliate marketing keyword tools to get instant value from what you read!

What are affiliate marketing strategies and why to go for them? Affiliate marketing is the most popular and effective digital advertising strategy used by a variety of marketers today. It’s important to choose the best keyword research tool for affiliate marketing.

The right keywords can convert even the most indifferent visitor into buying your product. Finding these elusive keywords is a hard task, particularly if you are not proficient in SEO and related tactics. This is what makes top-notch keyword research tools so vital for affiliate SEO. You will want to find an affiliate keyword tool that includes a promising combination of the following features.

Best Keyword Research Tool For Affiliate Marketing

There’s no shortage of tools purpose-built for keyword research (literally hundreds of them), and they run the gamut from beginner-focused to highly advanced. They also range from totally basic and unhelpful to super valuable.

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When done right, the best keyword research tools simplify and streamline your workflow—they make it easier to find the right keywords to target and give you the data you need to actually rank for them. But they shouldn’t require you to empty out your bank account and sell your first-born child in order to access that data.

After years of working with multiple clients who use all different tools for keyword research and SEO content optimization, I’ve seen the best (and the worst) of them—and I know how important it is to choose the right keyword planner tool. To help, I considered over 60 tools with a free option for keyword research. After in-depth testing, here are the top best, including the all-around greats and apps built for more specific use cases.


SemRush is one of the “big boys” on the SEO market. Not only is it a tool for researching keywords, but the platform also has so many features that you can use it for affiliate marketing and social media, or content marketing activities.

The best feature? Instead of giving you a long list of keyword ideas for whichever term you entered, SEMrush will show you keywords your competition is using, together with the search volume and competition for that keyword. This will help you find out how well your competitors are doing and which keywords you should be aiming for.

Top 5 keyword research tools for affiliate marketers

Main features:

  • Detailed analysis of any keyword you type – from search volume and competition on the keyword, to complete historical data about the popularity of the keyword.
  • On-page SEO audits
  • Analyzing any domain’s backlink profile and keywords used.
  • Several tools to improve your content’s power and reach
  • Analyzing traffic and audience of your competitors’ websites

And this is only the start of what this platform can do – want to monitor how your (and your competitors’) website’s ranking is doing? Or maybe work more on your website’s backlinks? You’ll surely find a feature that can help you do just that.

Pricing: SEMrush offers three pricing plans, with the most basic plan (Pro) costing $99 a month. SemRush claims this plan is best suited for small companies or freelancers. The Guru and Enterprise plans are respectively $191 and $374 a month when paid annually. There is also a 7-day free trial available, but you need to enter your credit card details to gain access to it.


If you were ever trying to research keywords or learn more about your page’s SEO, then you more than likely will have heard e about Ahrefs. It was mainly known as a link-building tool in the past, and it couldn’t do much besides that. Ahrefs is one of the most powerful SEO platforms with everything you might ever need to make your content and website rank as highly as possible.

Top 5 keyword research tools for affiliate marketers

Main features:

  • Precise keyword difficulty score measurement
  • Keyword research for ten search engines (including Yandex and Baidu)
  • Showing the estimated number of clicks on the keyword
  • Daily updated backlinks popularity graph
  • Detailed SERP history for any keyword

Pricing: Whilst Ahrefs can give you substantial amounts of data, it comes in at quite a high price. The cheapest Lite plan costs $82 per month when paid annually, and it only allows for one user at a time – every additional seat is an extra $300. For advanced and agency plans, the price can rise to $332 and $832 a month, respectively. Ahrefs, like SEMRush, has a seven-day trial for lite and standard plans, though in this case, the trial unfortunately isn’t free, and costs $7.

Moz Keyword Explorer

The previously mentioned tools are two of the most powerful and most expensive available on the market, so let’s look at something a bit cheaper and easier to use. Moz Keyword Explorer comes in two versions – a free version that is available straight on their website or from a browser add-on, and paid all-in-one SEO solution.

Showcasing their unique feature, Moz utilizes a keyword difficulty score called “Priority”, which adds the CTR (click through ratio), search volume and PPCs (pay per click ads) score to help you find the most relevant keywords for your new content even faster.

Top 5 keyword research tools for affiliate marketers

Main features:

  • Moz’s organic CTR and Priority score metrics
  • Easy to generate and save keyword lists
  • Long-tail keywords and question phrases search
  • Detailed SERP analysis breakdown

Pricing: For the free version, you either need to have an account on their website (that gives you ten free queries a month) or download their free Chrome add-on plugin. Keep in mind, though, that the free plugin doesn’t show the Keyword Difficulty score for the search terms. The paid plans start from $79 a month for the Standard plan to $479 for Premium (paid annually). All plans include a pro version of their SEO website plugin.

Google Keyword Planner

Google Keyword Planner is a good option for people who are just starting out with affiliate marketing. Businesses who don’t have a large budget for reputable tools or aren’t sure whether affiliate marketing is worthwhile can also use it. Whilst this is a pretty simple keyword research tool compared to other platforms above, the results come straight from the Google search engine. It means you can count on the results being as accurate as possible.

Top 5 keyword research tools for affiliate marketers

Main features:

  • Comparing keyword popularity in a given time
  • Showing amount of mobile searches for each keyword
  • Average monthly searches divided on devices used
  • Discovering the main keywords your competitors are using.

Pricing: Google Keyword Planner is entirely free to use. All you need to do is to create a Google Ads account, and then you can use the Keyword Planner tool through it.


Ubersuggest is a free SEO tool from the mind of Neil Patel. Using it, you can get new keyword suggestions and learn how difficult it could potentially be to rank for them. But that’s not all that the tool offers. You can find out where your traffic is coming from, and even look up the table of the 100 top Google results for a given keyword, together with plenty of data available on those results.

Top 5 keyword research tools for affiliate marketers

Main features:

  • Top-performing content for particular keywords
  • Showing device search volume, type of search, and age range of each searcher for a given keyword.
  • Competitor Domain Overview
  • Top SEO Pages
  • Backlink building tool

Pricing: Ubersuggest has both a free and paid version. With the free version, you have three daily searches available. If you sign into Ubersuggest with your Google account, you’ll also get more keyword suggestions and personalized SEO suggestions. But Neil Patel also offers a paid version of Ubersuggest – starting from $12 a month for individuals to $40 a month for agencies.


If you want your content to rank, spending time researching the best keywords for your newest article or video tutorial is a must. And to find these aforementioned keywords faster and easier, have a look at one or more of the keyword research tools above. If you are just starting out with affiliate marketing, picking the free or freemium tools is a good idea, as you won’t find yourself tied into any tool for a set period of time.

In the end, if you require a robust set of tools not only for affiliate marketing, but for other parts of your business as well, then it’s definitely worth trying out one of the “bigger” platforms. As all of them have a trial version, it’s a good idea to take them for a test ride first, and see which ones closest fit your marketing style.

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