LSI keywords

What are these LSI Keywords, how do we find them, and what is their importance to SEO?

To start off, LSI stands for Latent Semantic Indexing.

First, let’s look at what these special keywords are.

LSI is actually a mathematical algorithm that helps Google understand the connection between words in a particular piece of content.  It also is key as to how certain words are related to each other.

Google uses LSI principles, and your pages get ranked based on the actual meaning of your content.

LSI Keywords example

You’ll understand me better with a practical example.

Let’s say you’re writing an article about the keyword ‘Keywords’.  LSI keywords for this might be the following:

  • Keyword research
  • Google Analytics
  • Google trends
  • Keyword tools
  • Webmaster tools
  • How to use Google Analytics
  • Meta tags
  • How to search a website with Google
  • Google webmaster forum
  • Keyword types

As you can see, none of these words mean in any way the other words written here.   They are not synonyms, however, they are all common to the word ‘Keywords’.  These words are known as LSI keywords, all related to the main keyword, in this case, ‘Keywords’.

Google Hummingbird Algorithm

In the good old days, people used to stuff their articles with the same keyword, over and over again.  That used to work until Google got wise to this practice.  When the new algorithms were rolled out (Google Hummingbird), using this SEO tactic only served to backfire in the faces of the Webmasters who carried on doing it.

Unfortunately, many were heavily penalized, and they had to change their tune, and quickly.


Today, search engines give results which are linked to search queries.  Google Hummingbird is aimed at semantic search.

One of the beauties of using LSI is that an article will flow so much better.

Keyword stuffing example

Imagine the old way of writing an article, say about ‘Keywords’:


What are keywords and how do you use keywordsKeywords are what many SEO experts say are the lifeline of the internet world.  Without the use of the right keywords, your work will never be found.   You would have spent hours searching for these keywords without reaping any benefits from them because you didn’t find the right keywords in the first place.”

The above took my breath away, and I’m the one who wrote it.  I can only imagine the reaction of who might try to read this piece of content.  The chances are that they’ll read the first few words, then quickly close the page, and with good reason.

However, should the above have been worded differently…


What are keywords and how do you use them?  SEO experts claim they are the lifeline of the internet world.   Through specialized tools, like Google Analytics and Webmaster tools, the best ones can be found and utilized.  Through the use of Google trends, one can find the ideal ones, which can also be inserted into Meta tags for maximum exposure and effect.”

The second version flows so much better, and from an SEO perspective, all the LSI keywords are all related, and also support the word ‘Keywords’ without having to stuff the same word in the article.  This way, it is more orientated towards a human reader than towards a search engine.  Remember, your writing is there for people to read, appreciate, click on your links, and with any luck, they’ll even share your content.

This has the added advantage of increased traffic towards your site.

LSI keywords will be supporting the main keywords in your content, and their application will make your content a great deal better as a whole, from a marketing aspect, and also from an SEO perspective.  This is because your content will be more search engine friendly, as well as user-friendly.

Repeating the same keywords over and over again…well, it sucks.

How to find LSI Keywords – Free Tools

There are tools available to help you in your search for LSI keywords, and most of them are FREE.  The goal of these tools is to make your content better, more natural to read, and to avoid your stuffing the same keywords in every available corner you come across.

Your content really has to flow in a natural sort of way, and you should not keep thinking about inserting the right keyword at the right place.  This will only hinder the actual writing process, and the end result of your hard work won’t be as good as you’d hope it to be.

One such free tool to generate LSI keywords is found at

LSI keywords








Another free tool is found at

 LSI Graph








Yet another is found at

 Ultimate Keyword Hunter








Unlike the previous two tools, Ultimate Keyword Hunter needs to be downloaded and then installed on your computer.

It’s a great tool to find the perfect words you need to be able to rank higher as the application finds those words which are based on top ranking sites.

Keyword Shitter, found at is another great tool.

Keyword Shitter


This site is brilliant as you can actually download the list of LSI keywords supplied, which can then be applied at your convenience.



Niche Laboratory

This is a keyword finding research tool and LSI keywords generator.  It can even help you to discover topics and niches.

Niche Laboratory

You can try the free version, found at, by simply typing in the keywords in the allocated box, and then click the Run Niche Laboratory Lite button.  After a while, you’ll get a report with useful information related to your keywords.






Keyword Tool another fabulous tool, also free, and it will generate up to 750 keyword suggestions per search term.  You can use this tool without the need to create an account.

 Keyword Tool

It is said to be the best alternative to Google Keyword Planner as well as other Keyword Research Tools.

The usage of the above-mentioned tools can’t be simpler.  All you need to do is to insert the keyword you have for your article, and a list of LSI keywords will be provided for you.

It’s almost like magic!



What is LSI in SEO

LSI Keywords Improve Your Web Ranking and Web Traffic

What’s more magical is the fact that by using these LSI keywords, you can easily have your page on Google’s most sought-after page: Page 1.

By using the keywords strategically, you can let Google’s algorithms work in your favor and make your site rank higher instead of being penalized.

There is no reason why you shouldn’t take full advantage of this!

Once you get the hang of it, you’ll even be doing better than your competition, even though your budget is low.

You have your brains, and your creativity – apply these tools to your advantage and let these flow in your website to make it better than the rest.

I cannot emphasize the importance of using LSI for your website.  The beauty about it is that it actually works, and Neil Patel, a content marketing expert, states that:

LSI keywords, otherwise known as Latent Semantic Indexing keywords, are necessary for SEO in 2018

All this means is that you can uncover the most profitable, the most searched, and the keywords that will make your online business grow on all the major search engines.

I’ll let you in on a secret…

“This is where the Marketing Industry is heading…yes, towards the use of LSI keyword strategies”

LSI is what the search engines want, so let them have it.  You just can’t go wrong.

Apart from the already mentioned free online LSI keyword generator sites, Google itself also gives us access to this priceless wealth of information in the form of Google Autocomplete.

Google Autocomplete

If you don’t feel like going to free tool sites to get your LSI keywords, you can do this directly from your Google homepage, as follows:

Google Autocomplete

Just type in the search bar the keyword you have in mind, and Google will start showing you the best matches, automatically.

Let me show you what I mean in these screenshots when using the word “Keywords”.

The listed results are Google’s own LSI keywords for you to utilize as you so wish.  These are actually great to know about since what Google is showing you are actually keyword searches involving the word ‘Keywords’ searchers have previously typed in the search bar.

Once you’re on Google’s home page, if you scroll down halfway, you’ll also find another window, called “People also ask”.

Here, if you click on the pointing down arrows, Google will answer those questions directly for you.  As above, these are actual questions asked by people during their searches.

People also ask








Further down towards the bottom, Google also gives you even more information, in the form of Google’s related searches to the keyword you’re using.

Searches Related to Keywords







So, if you’re looking for information, Google’s more than happy to supply you with a great deal of it.  It’s readily available and without your lifting a finger in the process.

What is Latent Semantic Indexing used for?

To recap, to find suitable LSI keywords for your content is not as complicated as you might think.  Just writing your content for humans is more than enough to automatically create LSI keywords in the process.  The tools listed above, including Google’s search bar, are more than you’ll normally ever need.

Google’s aim is to deliver to searchers the best possible answers to their questions.  This has to be related, informative, and also naturally written with the sole purpose of giving a great ‘user experience’ to the reader.

LSI Keywords in search engine optimization

For more information about LSI keywords, you could take a look at my friend’s article, Latent Semantic Indexing and Keywords for Higher SEO, about this very versatile subject.  Robert Prescott has been on the SEO scene for quite a few years and has a great deal of experience under his belt.

Another friend, Robert Allan, is a person who I have great respect for.  His articles are very informative, and his guidance and explanation are out of this world.   His article, Boost Website Traffic with LSI Keywords, explains it all.

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