If you write an article about Apple, how do search engines know whether you’re referring to Apple the fruit or Apple the company?
Search engines understand it with relevant keywords and phrases. For instance, for the company, you will give company data, their innovations, and much more.
Those keywords and phrases that help search engines better understand the article are called LSI keywords.
The better the LSI you use, the clearer you make it for search engines to understand the article.
In short, LSI keywords are one of the deciding factors to check the relevance and quality of the article. Hence, it will improve your rankings if you do it wisely.
That’s why it’s important to invest your time and resources in finding highly accurate and relevant LSI keywords.
Here is how to do it.
On this page
LSI Graph
LSI Graph is one of the oldest tools for researching LSI keywords. I have used it when almost no one was talking about LSI Keywords, but mostly SEO was about backlinks. At that time LSI graph was free, but now they only offer premium services.
It’s a great tool to get LSI keywords to integrate into your articles and copies to make them search engine-friendly.
But don’t rely completely on any tool. Your common sense also matters.
The tool will provide you with so many keywords. You can’t add all of them. Some will be partially relevant, and some will not be even close to the query intent. Thus, you should keep your eyes open while using any of these tools.
Now, let’s see how to use this tool to find LSI keywords to improve search rankings.
- Open LSIGraph
- Create an account with LSIgraph
- Put the head term in their search box
- Get tons of LSI keywords along with many other details.
Rank Math Content AI (for WordPress users)
Rank Math is a WordPress blog’s All-in-one ranking solution.
Rank Math is the pioneer SEO plugin offering this feature. They named it Rank Math Content AI.
Not all bloggers focus on so many things that help them rank higher. At least, no one cares about LSI Keywords.
Rank Math has offered a complete solution to rank faster on Google.
The Rank Math Content AI tool provides you with relevant queries to add to the article within your WordPress Dashboard.
As it’s a new feature, I believe they don’t have enough data, so it’s comparatively less accurate than LSIgraph and Semrush.
Although they are offering keywords, questions, and external links to add to the article, that’s why it’s worth investing.
Google also notices whom you are pointing at, and the anchors also matter. That’s why it’s a great idea to add external links to each article.
Here is how to do it.
- Install the plugin RankMath. From Plugins > Add New > Rank Math
- Enable Content AI from RankMath settings
- Open the article you want to optimize or add new.
- Open Rank Math menu
- Click Content AI above your focus keyword
- Get suggestions, and add to the article.
The wisest thing is to choose highly relevant keywords for your article. Rank Math isn’t as advanced as Google. So keep Google’s technology in mind.
Semrush
Semrush is another best tool that provides you with the best relevant queries to add to the article.
Semrush is an easy-to-use and second-best tool to find LSI keywords.
Like LSIGraph, you put the keyword, and it automatically provides you with the best relevant search terms.
Here is how it works.
- Open Semrush
- Login into your account
- Put a keyword in the search box in your account
- Choose highly relevant search terms, phrases, and questions from “keyword variations”, “questions” and “Related keywords”
You can also do it in your free account.
Ahref
Different people have different ways to find relevant search terms. One of my fellow bloggers is using Ahrefs to find relevant queries.
Though Ahref doesn’t offer LSI keywords in the tool, you can use it to find out relevant search terms using Ahref.
Here is how to do it.
- Put the keyword in Google
- Pick the best performing results from SERP (from the first page only)
- Put each URL in the site explorer
- See for which terms the URLs are ranking
- Pick all the best search terms from the data
The terms are your LSI keywords (not exactly).
Here is the other method.
- Put the keyword in the Keywords Explorer
- Pick the best keywords from suggestions, questions, and relevant results
The first method is good enough because you will get relevant queries that are already helping pages rank higher on Google.
Google search (Completely free tool to find fresh LSI keywords)

It’s true that SEO tools lower the burden and make things pretty easy to research. But tools might not be accurate all the time. So, it’s better to use as many opportunities to get the latest data.
So, along with any tool you’re using, you should also use Google Search data to see where the things are heading.
Here is how I find my LSI keywords, and you can too use the same method for free.
- Put the keyword in Google (Open Google.com for the USA)
- Note down, “People also ask”
- Copy the “Related searches” given at the end
- Now again, type the main term in the google search box
- Autocomplete will suggest many search terms
- Pick the best from those autocomplete terms
- Make a single sheet for all the keywords and questions.
- Delete the terms that don’t make sense to the search intent.
The above-mentioned are the 5 best techniques to find LSI keywords. Putting LSI keywords in the articles will improve your rankings for sure.
Which tool is famous to extract LSI keyword?
LSI Graph is a famous tool to extract LSI keywords.