What is Keyword Research and Why Does it Matter?
In the ever-evolving world of SEO, keyword research remains the cornerstone of any successful digital strategy. But what exactly is it? Put simply, keyword research is the process of discovering the actual search terms people type into search engines, and using that data to optimize your content.

Why should you care? Because understanding what your audience is searching for is the difference between being found online or disappearing into the digital abyss. Without proper keyword research, you're essentially creating content in the dark, hoping someone stumbles upon it.
I once worked with a client who owned a cat-focused paranormal investigation agency (yes, really!). They were producing content around "cat detective agency" – a term that literally nobody was searching for. After shifting their content strategy toward broader terms like "paranormal investigators" (800 monthly searches), their visibility skyrocketed.
The Three Pillars of Effective Keyword Research
Before diving into the how-to, let's understand what makes a keyword worth targeting. Three essential elements determine a keyword's value:
- Relevance: Does your content actually solve what the searcher is looking for? Google ranks content based on how well it meets user intent, not just keyword matching.
- Authority: Can your site compete for this term? High-authority domains like Forbes or Mayo Clinic dominate certain keywords, making them nearly impossible for newer sites to rank for.
- Volume: Are people actually searching for this term? A #1 ranking for a zero-volume keyword is like opening a store in a ghost town.
But here's where many beginners go wrong – assuming higher search volume is always better. As HubSpot Growth Manager Amal Kalepp notes, "You might get a lot more traffic ranking for a keyword that has a lower MSV and lower competition than one with a high MSV."
How to Research Keywords: A Step-by-Step Process
Step 1: Create Topic Buckets
Start by brainstorming 5-10 general topics relevant to your business. These will serve as the foundation for your keyword strategy. For example, a company like HubSpot might include buckets like "SEO" (201K MSV), "email marketing" (22.2K MSV), and "inbound marketing" (8.1K MSV).
Ask yourself: What topics come up most frequently in your sales conversations? What information is your target audience actively seeking?
Step 2: Fill Your Buckets with Keywords
For each topic, brainstorm phrases your potential customers might search. Don't worry about getting it perfect – just brain dump everything that comes to mind.
For example, under "marketing automation," you might include:
- Marketing automation tools
- How to use marketing automation software
- Do I need marketing automation?
- Lead nurturing email automation
Pro tip: Talk to your sales and customer service teams. What questions do they hear from prospects and customers? These are keyword gold mines!
Step 3: Understand Search Intent
This is where many SEO strategies fail. A keyword might have multiple meanings or intentions behind it. Before committing to a keyword, search for it yourself and analyze the results.
For instance, "how to start a blog" could mean creating a blog post OR setting up an entire blog website. The search results will tell you which interpretation Google (and therefore users) favor.
Step 4: Explore Related Search Terms
Need more keyword ideas? Look at the "related searches" section at the bottom of Google's search results page. This shows you what other terms people are searching alongside your primary keyword.
This technique can uncover valuable long-tail keywords you might have missed. For example, searching for "AI search grader" reveals people are also looking for "free AI search grader" and "best AI search grader."
Step 5: Use Keyword Research Tools
Several powerful tools can supercharge your keyword research. Some popular options include:
- Ahrefs Keywords Explorer
- SEMrush Keyword Magic Tool
- Ubersuggest (offers free searches)
- Google Keyword Planner (completely free)
- Keywords Everywhere (browser extension)
These tools help you discover search volume, keyword difficulty, and related terms all in one place.
Finding Your SEO Sweet Spot
Now comes the strategic part: choosing which keywords to actually target. Remember, not all keywords are created equal, and what works for your competitors might not work for you.
Prioritize Low-Hanging Fruit
Focus on keywords where you have a realistic chance of ranking. For newer websites, this often means targeting long-tail keywords with lower competition. While established brands battle over "Instagram marketing" (millions of searches), you might find more success with "Instagram marketing for small craft businesses" (lower volume but much easier to rank for).
Balance Head Terms and Long-Tail Keywords
Your strategy should include both short, high-volume "head terms" (like "blogging") and more specific long-tail keywords (like "how to write a great blog post"). Head terms drive larger traffic potential but are more competitive, while long-tail keywords typically convert better because they catch users with more specific intent.
Ahrefs data shows "blogging" has much higher search volume than "how to write a great blog post" – but the latter has clearer intent and likely higher conversion potential.
Check SERP Features
Different keywords trigger different search result features. Are you seeing image packs? Featured snippets? Video results? These SERP features provide clues about what content format might perform best for a particular keyword.
For example, if you see an image pack for "workspace design inspiration," your content should include high-quality, optimized images to compete effectively.
Conclusion: Keyword Research is a Journey, Not a Destination
The most successful SEO strategies treat keyword research as an ongoing process, not a one-time task. Re-evaluate your keywords quarterly (or even monthly for fast-moving industries) to stay ahead of changing search patterns and emerging opportunities.
As you build authority in your niche, you'll gradually be able to compete for more challenging keywords. Remember what Kalepp wisely noted: "It takes a long time to see results when you're first building that strategy out. Just understand that it takes time."
The ultimate goal is finding your sweet spot – the intersection of keywords with decent search volume that you can realistically rank for AND create exceptional content around. Follow these steps, stay patient, and watch your organic traffic grow steadily over time.
Frequently Asked Questions
How often should I update my keyword research?
Most SEO experts recommend reviewing your keyword strategy quarterly. However, if you're in a rapidly evolving industry, monthly reviews may be necessary to capitalize on emerging trends and search patterns.
Is it better to target high-volume keywords or low-competition keywords?
For newer websites with limited domain authority, focusing on lower-competition keywords (often long-tail) typically yields better results faster. As your authority grows, you can gradually target more competitive terms.
How many keywords should I target on a single page?
Focus on one primary keyword and 2-3 closely related secondary keywords per page. Trying to target too many keywords on a single page can dilute your focus and may appear as keyword stuffing to search engines.
What's the difference between keywords and topics in modern SEO?
Keywords are specific search terms, while topics represent broader subject areas that encompass multiple related keywords. Modern SEO focuses on comprehensive topic coverage rather than just individual keyword targeting, as search engines increasingly understand semantic relationships between terms.
How do I know if a keyword is too competitive for my website?
Check the keyword difficulty score in tools like Ahrefs or SEMrush. Also, manually analyze the SERPs to see who's ranking—if the top results are dominated by high-authority domains and comprehensive content that you can't realistically match, the keyword may be too competitive for your current site authority.