SEMrush Keyword Research: A Simple Beginner Tutorial (2026)

SEMrush keyword research is where most beginners either build a real traffic plan or quietly waste three months writing posts nobody searches for.

You can publish the best guide on the internet, but if nobody types the topic into Google (or page one belongs to sites with ten years of authority), the post sits at zero. That’s why keyword research happens before writing. Always before.

This SEMrush keyword research tutorial walks through the whole process: which tool to open first, the two filters that do most of the work, and how to turn a messy export into an actual content plan. If you’re brand new to the platform, skim the SEMrush for beginners guide first, then come back here.

What is SEMrush keyword research?

SEMrush keyword research means using the platform’s keyword tools to find what people type into Google, how many searches each term gets monthly, and how hard each one would be to rank for. The output is a shortlist of topics your site can realistically win, backed by data instead of guesswork.

Gut feeling can’t do that job. The data handles three things at once: it confirms real demand exists, it scores the competition, and it also surfaces hundreds of related terms you’d never brainstorm alone.

Most beginners skip SEMrush keyword research because the writing feels like the real work. Then six months pass, traffic sits at zero, and the conclusion becomes “blogging doesn’t work.” In fact the content usually isn’t the problem. Nobody searched for it.

The four keyword tools inside SEMrush

SEMrush splits keyword work across four separate tools, but they aren’t interchangeable. Each answers a different question.

Keyword Magic Tool

The one you’ll live in. Type any seed keyword and it returns thousands of related suggestions with volume, difficulty, intent, and CPC attached to each. For your first month this is also the only tool you really need.

Keyword Overview

Use this when one specific keyword is already on your mind, since it shows the complete picture for that single term: monthly volume, difficulty, SERP features, and who currently holds page one.

Keyword Gap Tool

Enter your domain next to up to four competitors and SEMrush lists every keyword they rank for that you don’t. The Missing tab matters most here, because it shows terms where all your competitors appear while you have zero presence. Free validated content ideas, basically.

Keyword Strategy Builder

A newer tool that spins one seed term into a full topic cluster: pillar page, supporting posts, the linking structure between them. Useful eventually. Skip it until the basics feel boring.

How to do SEMrush keyword research step by step

Open the Keyword Magic Tool first, then work through these five steps in order.

Step 1: enter a seed keyword

Type a broad topic your site covers. Not a sentence, just the core concept (“SEO tools”, “email marketing”, “keyword research”). Hit search and SEMrush returns anywhere from a few hundred to several thousand suggestions, depending on the topic.

Step 2: set the two filters that matter

The raw list is huge and mostly useless for a new site, so filter immediately.

Set Keyword Difficulty (KD%) to a maximum of 40. New domains can’t compete above that line yet. Then set minimum volume to 100, because anything under it serves an audience too small to justify a full post.

Two filters. The list drops from thousands to a workable shortlist.

Step 3: read the data columns

Four columns matter at this stage.

Volume is a 12-month average of monthly searches, so treat it as directional rather than exact. KD% is the difficulty estimate: 0 to 29 is open territory, 30 to 49 is winnable for newer sites, and past 70 belongs to high-authority domains. Intent labels what the searcher wants (learning, comparing, buying, or finding a specific site). CPC shows what advertisers pay per click, which signals commercial value even though you’re writing organic content.

High CPC plus low KD is the affiliate sweet spot, in practice.

Step 4: filter by search intent

For blog posts, select Informational intent. That removes buyers and brand-navigators who won’t engage with editorial content anyway.

For a tools and reviews site, also keep Commercial intent terms. “Best SEO tools” and “SEMrush vs Ahrefs” are Commercial queries, and they’re exactly the posts that earn affiliate clicks later.

Step 5: export and group

Hit export, open the file, and group similar keywords together. Keywords about the same topic become one post, not five thin ones.

A keyword list isn’t finished at export. The finish line is every group having a planned post attached.

Keyword difficulty: what score should you target

KD% might be the most misread number in all of SEMrush keyword research.

It estimates how strong the currently ranking pages are, not your odds in any absolute sense. A score of 35 doesn’t promise you’ll rank. It means page one isn’t locked up by overwhelming authority, so a strong post has a real shot.

Rough targets by site age:

• Brand new site (under 6 months): stay under KD 30
• Some posts and a few backlinks: up to 45 works
• Established domain authority: 50 to 70 becomes realistic

One more thing beginners miss: low difficulty and low volume travel together. A term with KD 15 and 200 monthly searches still earns its post, since 200 targeted visitors a month from one page compounds fast across a growing site.

Don’t chase volume you can’t win. A keyword you can rank for beats a bigger one you can’t, every single time.

Four ways to find low competition keywords

Low competition terms give new sites their first wins, and SEMrush keyword research surfaces them in four different ways.

First, the blunt filter: KD under 30, volume over 100, sort by volume descending. The top of that list is your best starting material.

Second, go long tail. Switch Broad Match to Phrase or Exact Match and the suggestions get longer and more specific. “SEMrush keyword research tutorial for beginners” is far easier to win than “keyword research”, and the person searching it knows exactly what they want.

Third, open the Questions tab. Question-format keywords carry lower competition on average, plus they map directly to Google’s People Also Ask boxes. A clean 50-word answer under a question heading can take a featured snippet from a much bigger site.

Finally, run the Keyword Gap report and open the Missing tab. Your competitors already validated these terms by ranking for them. You just haven’t shown up yet.

SEMrush vs Google Keyword Planner

Both handle keyword work, though they’re built for different jobs.

Keyword Planner exists for advertisers. It shows volume in broad ranges (exact numbers require active ad spend), it optimizes for bidding decisions, and it offers no useful difficulty score or competitor view.

SEMrush keyword research is built for SEO: exact volume estimates, difficulty scores, intent labels, question keywords, and full competitor data in one place. For organic content strategy it wins by a wide margin. For planning actual ad spend, Keyword Planner still earns its spot as a free validation check.

Either way, use one tool as the working surface and the other as a sanity check, not both at once.

Five beginner mistakes with keyword data

Going too broad. “SEO” carries a KD above 90, so a new site will never touch it. Narrow and specific wins until you’ve earned authority.

Ignoring intent. A Commercial keyword written as a beginner explainer ranks poorly, while an Informational keyword written as a sales page converts nobody. Match the format to the label.

Exporting and never organizing. Three hundred rows in a spreadsheet is raw material, not a strategy. The grouping step is the actual work.

Treating volume as the only signal. A KD 12 term with 150 searches often beats a KD 65 term with 2,000, because early wins build the authority that makes bigger terms reachable later.

Doing it once. SEMrush keyword research isn’t a one-time task. Trends shift, competitors move, new terms appear. Revisit the data every 60 to 90 days and adjust the plan.

Frequently asked questions

What is a good keyword difficulty score in SEMrush?

Under 30 for sites less than six months old. Up to 45 once you have some content and backlinks. Past 50 requires real domain authority, so save those targets for later.

How accurate is SEMrush keyword volume data?

Directionally accurate, which is enough for content decisions. The numbers are 12-month averages from SEMrush’s own database rather than live Google data, so compare keywords against each other instead of treating any figure as a traffic promise.

How do I find low competition keywords in SEMrush?

Set KD under 30 and volume over 100 in the Keyword Magic Tool, then check the Questions tab for long-tail terms. The Keyword Gap tool’s Missing tab adds competitor-validated targets you haven’t covered yet.

What does keyword intent mean in SEMrush?

Intent labels what the searcher is trying to do. Informational means learning, Commercial means comparing options, Transactional means ready to buy, and Navigational means finding a specific site. Match content type to label: blog posts for Informational, comparisons for Commercial, product pages for Transactional.

How many keywords should I target per post?

One primary keyword per post. That single term drives your title, slug, and meta description. Five to ten related secondary terms can appear naturally in subheadings and body text, but never force them.

Is SEMrush keyword research worth it for beginners?

Yes, mostly because difficulty data sits next to volume. Free tools estimate volume, but they can’t tell you whether a term is winnable for your site. Guessing wrong on that costs months.

Once your keyword list is grouped and ready, the next job is making sure Google can actually crawl the site you’re about to grow