How Many Types of Keywords in SEO?
If you've ever asked how many types of keywords in SEO exist, you're in the right place. Most people grab a keyword, drop it into a post, and get nothing.
I've run SEO across travel, fitness, real estate, and home content for years, and the type of keyword you pick matters more than most people think.
This blog breaks down every major keyword category with clear examples.
By the end, you'll know exactly which types to use and when. No fluff. Just what actually works.
What Are Keywords in SEO?
Keywords are the words or phrases people type into Google or other search engines when they want information. Your content needs to match those searches.
When it does, Google rewards you with rankings.
When it doesn't, even great writing stays buried on page 5.
How Many Types of Keywords in SEO Are There?
There are 6 main types of keywords in SEO. When subcategories are included, that number grows to 20 or more.
You can sort them by search intent, length, targeting strategy, branding, competition level, content freshness, or buyer stage.
Most SEO tools like Ahrefs and Moz use some version of this grouping.
Knowing each one helps you build a content plan that actually gets traffic.
Search Intent Categories
Search intent tells you the reason behind a search. It's one of the clearest ways to classify keywords.
Informational Keywords
These are "how," "what," and "why" searches. People want to learn. Example: "how does SEO work." Good for blog posts and guides. These aren't buy-ready, but they build trust.
Navigational Keywords
The person is looking for a specific site or brand. Example: "Semrush login." Competing here is tough unless it's your own brand.
Commercial Investigation Keywords
Buying interest, no final decision yet. Example: "best SEO tools 2024." Great for reviews and comparison content. Ahrefs and Moz both rank well for these.
Transactional Keywords
High intent. The person is ready to act. Example: "buy SEO course online." These belong on product pages and landing pages.
SEO Keyword Classifications by Length
Keyword length directly affects how hard it is to rank and how specific the traffic will be.
Short-Tail Keywords
One to two words. High volume, high competition. Example: "SEO tips." Hard to rank without strong domain authority.
Medium-Tail Keywords
Two to three words. More focused. Example: "SEO tips 2024." A solid middle ground for most content.
Long-Tail Keywords
Four or more words. Lower volume but higher intent. Example: "how to do SEO for a new blog." These convert better and rank faster on newer sites.
Search Keyword Groups by SEO Targeting
How you target keywords on a page determines how well Google understands your content topic.
Primary Keywords
Your main keyword for the page. Every piece of content should have one clear primary keyword to build around.
Secondary Keywords
These support the primary keyword. I use 3 to 5 per post to strengthen topical depth.
Semantic Keywords
Words related in meaning to your main keyword. If the topic is "dog food," semantic terms might include "puppy nutrition" or "canine diet."
Contextual Keywords
These are terms that naturally appear alongside your main keyword. They signal relevance to Google without repeating the same phrase.
Tools like Ahrefs and Semrush help you find them under "related keywords." This is a more accurate and current way to think about keyword relevance than older frameworks.
Keyword Categories Based on Branding
Branded and non-branded keywords serve very different goals in your overall SEO plan.
Branded Keywords
Include your brand name. Example: "Nike running shoes." These protect your search visibility and usually convert well since the searcher already knows you.
Non-Branded Keywords
No brand name included. Example: "running shoes for flat feet." Great for reaching people who have never heard of you.
SEO Keyword Groups by Competition Level
Competition level tells you how hard it will be to rank and where to focus your energy first.
High-Competition Keywords
Big sites dominate these. You need strong authority. Example: "best credit card."
Medium-Competition Keywords
More reachable for mid-size sites. Good mix of traffic potential and ranking effort.
Low-Competition Keywords
Smaller search volume, much easier to rank for. Great starting point for new blogs.
Low-Hanging Fruit Keywords
You're already on page 2 or 3 for these. A content update or internal link can push them to page 1. Google Search Console shows you exactly which ones to go after.
Keyword Groups by Content Freshness
Some keywords stay relevant for years. Others peak fast and fade just as quickly.
Evergreen Keywords: Relevant all year, every year.
Example: "how to lose weight." Steady, long-term traffic source.
Seasonal Keywords:Spike at certain times.
Example: "Christmas gift ideas." Plan your content 2 to 3 months ahead.
Trending Keywords: Short bursts of high interest.
Example:a newly rolled out Google algorithm update. High risk, but can drive a quick traffic spike if timed well.
Types of Local SEO Keywords
Local keywords target a specific area.
Example:"plumber in Brooklyn" or "best pizza near me." Adding your city or neighborhood makes any keyword local. These tend to be low-competition and high-intent.
If you run a location-based business, local keywords bring real customers, not just traffic numbers.
Keywords Across the Buyer Journey
At the awareness stage, people use informational keywords. At the consideration stage, they shift to commercial investigation keywords.
At the decision stage, transactional keywords drive action. Mapping your content to each stage means you're not just pulling in traffic.
You're moving people toward a buying decision.
Which Keyword Categories Should You Focus On?
New sites should start with long-tail and low-competition keywords. Build authority first. Then layer in medium-competition and commercial terms.
I always pair one strong primary keyword with 3 to 5 supporting terms per post.
That combination works across every niche I've covered, from home improvement to skincare to real estate.
Common Keyword Mistakes to Avoid
Targeting only short-tail keywords is a common trap. So is ignoring search intent.
Many bloggers skip local keywords even when their business is location-based.
Missing contextual and semantic keywords limits how well Google reads your content.
And optimizing for keywords nobody is searching for is worse than no optimization at all.
How to Find Different Keyword Types
Use Google Keyword Planner for volume data. Ahrefs and Semrush show competition, keyword difficulty, and related terms.
Moz is solid for newer sites. Check Google's "People Also Ask" section for informational keyword angles.
Use Google Search Console to spot the keywords you're already close to ranking for.
Real Examples of Different Keyword Types
Here's how the same general topic looks across different keyword types.
- Short-tail: "SEO"
- Long-tail: "how to do SEO for a small business blog"
- Informational: "what is keyword research"
- Transactional: "buy SEO audit service"
- Local: "SEO agency in Chicago"
- Branded:"Semrush keyword tool"
- Evergreen:"how to write a blog post"
- Seasonal: "best SEO strategies for 2025"
- Trending: "Google March 2025 core update tips"
Each one fits a different part of your content plan and serves a different type of reader.
Conclusion
Keywords are signals, not just search terms. I've seen blogs grow fast by switching from random picks to a clear keyword strategy.
Start with long-tail terms. Add informational content to build trust with Google. Bring in transactional and commercial keywords as your site authority grows.
Use tools like Ahrefs, Semrush, or Moz to guide every decision. Stay consistent, and the results follow.
Which keyword type are you going to start using first in your content plan?
Frequently Asked Questions
What is the most important keyword category in SEO?
There is no single most important type. Informational keywords build traffic while transactional keywords attract buyers. The right mix depends on your content goal.
How many keywords should I target per blog post?
One primary keyword per post works best, supported by 3 to 5 secondary or semantic keywords. More than that often hurts content focus.
Are long-tail keywords better than short-tail keywords?
For new websites, yes. Long-tail keywords have lower competition and clearer intent, making them easier to rank for and more likely to convert.
What are low-hanging fruit keywords?
These are keywords you already rank for on page 2 or 3. A content update or added internal links can move them to page 1 quickly.
Do different pages need different keyword categories?
Yes. Blog posts work best with informational or commercial keywords. Product and service pages should target transactional keywords for stronger results.
