Free Keyword Research Tools Every New Affiliate Should Know

Before you write a single post or pick an offer to promote, you need to know whether anyone is actually searching for what you’re about to talk about. That’s the whole job of keyword research, and you don’t need a paid tool subscription to do it well enough to get started.

Key Takeaways

• Free keyword tools won’t give you exact search volume the way paid tools do, but they’re accurate enough to tell you if a topic is worth writing about at all.
• You only need three pieces of information for each keyword: what people are actually searching, roughly how often, and what’s already ranking for it.
• Google’s own autocomplete and “People also ask” boxes are free research tools that most beginners ignore completely.
• Pick one keyword per piece of content and build the whole page around answering that one question, then move on to the next.

Why this matters before you write anything

Here’s a scenario that plays out constantly. Someone picks a niche, gets excited, and starts writing blog posts about whatever comes to mind that week. Six months later they have thirty posts and almost no traffic, because none of those thirty posts answer a question anyone was typing into Google. Keyword research isn’t a chore you do to check a box. It’s how you make sure the hours you spend writing actually have somewhere to go.

If you’ve already read about building a simple content calendar, keyword research is the step that fills in the blanks on that calendar. Without it, you’re just guessing at topics. With it, every slot on the calendar has a reason to exist.

Google Search Console (if you have any traffic at all)

If your site has been live for a few months, Search Console is the single most useful free tool you have, because it shows you what Google is already showing your pages for. You’ll often find you’re ranking on page two for a phrase you never deliberately targeted. That’s a signal. Tighten that page, add a section that directly answers the phrase, and you can move from position 14 to position 7 without writing a single new post.

Google Autocomplete and “People Also Ask”

Type your topic into Google and stop before you hit enter. The autocomplete suggestions are real phrases real people searched recently. Scroll down to the “People also ask” box on the results page and you’ll find four or five related questions, and clicking into them reveals even more. This costs you nothing but a few minutes, and it’s often better than a paid tool because it reflects searches happening right now, not last month’s database snapshot.

AnswerThePublic (free tier)

This one visualizes questions people ask around a seed keyword, grouped by who, what, where, why, and how. The free version limits how many searches you get per day, so use it in batches. Pick your niche topic, run it once a week, and you’ll build a running list of content ideas faster than you can write them.

Ubersuggest (free tier)

Ubersuggest gives you a rough monthly search volume, a difficulty score, and a list of related keywords for each search. The free version caps your daily lookups, so don’t waste them on vague terms like “make money online.” Use your limited searches on specific phrases close to what you’d actually title a post, things like “best low cost affiliate products for beginners” rather than just “affiliate products.”

The free resource library

If you want a shortcut past trial and error, the library has a keyword research checklist among the free checklists that walks through the exact order to do this in: seed keyword, autocomplete, competitor check, then difficulty check. Following a checklist the first few times keeps you from skipping the step that matters most, which is almost always checking who else is ranking for that term.

How to actually use what you find

Having a list of fifty keywords does nothing for you sitting in a spreadsheet. Here’s the process that works:

1. Pick one keyword. Not three, not five. One.
2. Search it in Google and look at the top five results. If they’re all massive sites with years of authority, that keyword is probably too competitive for a new site. Skip it for now.
3. If you see smaller, newer sites ranking, that’s your green light. Write the piece.
4. Build the entire page around answering that one search, directly and early, before you add anything else.

This is the same logic behind turning traffic into actual income on an authority site. Traffic without a plan for what happens next is wasted. Keyword research is step one of that plan, not a separate task you do once and forget.

The mistake almost everyone makes

New affiliates tend to chase keywords with big search volume and ignore the competition score entirely. A keyword with 10,000 searches a month and a hundred authority sites already ranking for it is worthless to you right now. A keyword with 200 searches a month and only a handful of thin, outdated pages ranking is worth writing today. Volume matters less than winnability when you’re starting out with zero domain authority.

The other common mistake is treating keyword research as a one-time setup task instead of an ongoing habit. Revisit your target keywords every few months. Search behavior shifts, new questions show up, and pages that ranked fine last year can slip if you never update them.

Where this fits with your other tools

Keyword research doesn’t replace the rest of your workflow, it feeds it. Once you know what to write about, you still need a plan for turning that content into clicks and subscribers, which is covered in the piece on simple traffic generation for beginners. And if you’re using AI to draft content faster, feeding it a specific target keyword and the actual questions people are asking produces far better output than a vague topic, something the guide on using AI in your marketing work gets into in more detail.

Frequently Asked Questions

Do I need a paid keyword tool to get started as an affiliate?

No. Free tools like Google autocomplete, the “People also ask” box, and the free tiers of Ubersuggest and AnswerThePublic give you enough information to pick good topics when you’re starting out. Paid tools become more useful once you’re publishing regularly and want to track rankings over time.

How many keywords should I target per blog post?

One main keyword per post, with two or three closely related phrases worked naturally into the page. Trying to target five unrelated keywords on one page usually means the page doesn’t fully answer any of them well.

What search volume is good enough for a new site?

There’s no fixed number, but many beginners find more success targeting keywords with 100 to 500 monthly searches and low competition than chasing terms with 10,000 searches that established sites already dominate. Winnable beats big when you have no authority yet.

How often should I update my keyword list?

Check it every couple of months. Search habits change, new related questions appear, and a page that ranked well a year ago might need an update to keep its spot. Treat keyword research as a recurring habit, not a one-time setup step.

Once you’ve got a shortlist of keywords worth targeting, the next step is turning that list into a repeatable writing habit. The free resource library has templates and checklists built for exactly that next step.