I already wrote about LSI keywords in one of my earliest articles.
For those who haven’t read it, let me jolt your memory.
LSI keywords or latent semantic indexing keywords are phrases that are connected to article’s main keyword.
They are a group of synonyms and related phrases that Google expects to see within an article.
For example, if you’re writing about cars, it is normal for words such as vehicle, wheels, doors, motor, Toyota, automobile, race to be present within the text.
Why are latent semantic indexing keywords important?
They help Google determine what’s your article all about.
For example, if you write an article about cars and you use latent semantic indexing keywords such as Toyota, Honda and Nissan, Google is able to determine that you’re talking about Japanese car industry.
On the other hand, LSIs such as Ford and Chrysler would imply American industry.
LSIs allow Google to pinpoint the precise topic giving article more or less weight when ranking for a particular keywords. Lack of certain keywords can prevent you from entering top 5 results.
As you can see, you can create an awesome piece, get lots of shares and links and you might still not reach top results in Google.
So, how can you find the right LSI keywords?
The answer is pretty simple: by using LSI keyword generators such as LSI Graph.
The main issue with latent semantic indexing is that we can never be sure what Google expects to see.
Even if we think we have complete control over the situation, some phrases may sneak by completely destroying our ability to rank.
In some cases, required words and phrases may be affected by top results.
What do I mean by that?
Oftentimes, an article may reach top spots due to factors such as links, domain authority, user engagement stats, etc. Given that all other signals are in their favor, Google will not give enough weight to LSI keywords.
In other words, Google may neglect latent semantic indexing keywords which are necessary for a particular topic. The article may be shallow and still reach top positions.
However, the problem occurs with the following thing.
Now, Google will start basing its required LSI on top rankings results; results that do not necessarily have “optimal” phrasing. This means you will have to adapt to top ranking results and use their LSIs even though they might not be as relevant as you would thought.
This may force you to omit several important phrases that are necessary.
Anyway, there are still a lot of unknowns when it comes to LSIs and how Google determines them. Does it give advantage to phrases that are logical or to phrases that can be found in top ranking articles?
One thing is for certain.
Although LSI keywords may not be a deciding factor that will help your rank, it will definitely be an obstacle if you lack some crucial semantically related phrases.
Using keywords generators for SEO
Based on everything I’ve said so far, it seems like a reasonable solution to start using a keyword generator. It is the quickest way to figure out what works and what doesn’t.
Latent semantic indexing is a part of SEO and you shouldn’t neglect it.
However, there is a catch!
Same as regular user, average LSI keyword generator doesn’t actually know what is the optimal course of action. Like most other things within SEO industry, a lot of it comes to a guessing game.
This is especially true when it comes to weighing different LSIs.
While it is more or less easy to find required phrases, it is sometimes hard to tell the exact number of repetitions Google wishes to see (a.k.a. keyword density). It is also hard to figure out where these phrases should be within the text.
Imagine having 5 important phrases and you have to cram all of them within title and first paragraph just so Google can notice them.
Fortunately, you should simply add that phrase once or twice.
As previously mentioned, your primary task is to find and include them. We’re not pursuing keyword density here. It’s all about including the needed terms at least once in your content.
For this purpose, almost any SEO keyword generator can do the trick (well, at least to an extent).
Let’s check some of the most popular LSI tools.
LSI Graph – most popular among LSI tools
It’s only normal to start from LSI Graph.
Most SEO experts refer to this LSI tool as the best Google SEO keyword generator.
Let’s see how it works in practice.
For purpose of this article, I will run keyword “SEO” through numerous LSI generators.
Tool returned results such as:
- SEO techniques
- Web page optimization
- Getting website on search engines
- Learn SEO
- Site optimization
Interesting thing about these results is that you can’t find “search engine optimization” anywhere which doesn’t make sense.
But all these results are definitely connected to SEO. It seems like these are the things people are usually searching for when searching for SEO related topics.
In theory, by having all these phrases in your article, you should be able to rank for the majority of popular queries revolving around the term “SEO”.
There is still some cause for concern as the tool didn’t provide phrases which are necessary for any SEO article such as “Google”, “page”, “content”.
Why these 3 keywords? I’ll explain, stick with me.
That being said, LSI Graph can definitely help you figure out popular and related queries but you shouldn’t build your content solely based on these results.
This is another fairly popular tool to generate keywords for your keyword research campaign.
Keyword Shitter is a program that is probably the most quantitative in its nature.
What do I mean by that?
After entering your keyword, LSI generator will start retrieving thousands and thousands of results.
Do you really need so much suggestions?
Well no, but it is simply the way tool works.
Some of the results are:
- seo meaning
- seo tools
- seo optimization
- seo audit
- seo analysis
As I mentioned, the best thing about this tool is the fact it can retrieve so much suggestions.
It also has a positive and negative filter (I used it to remove some of the irrelevant suggestions on the picture above).
Methods it uses to determine is what interests me.
After entering SEO, we got several queries revolving around Seoul (I put it into the negative filter as it obviously is not relevant to our query). This allows us to presume that Keyword Shitter uses root words to retrieve results.
There is something amiss with that statement.
Among top results we can see brand “Sephora” which isn’t the root word.
Nevertheless, it does have S, E and O in its name. This might indicate that Keyword Shitter also analyzes the most popular results.
Keyword Shitter should be used to increase your word corpus but it needs human intervention. You should always use your common sense when analyzing the results it returns.
You might find some interesting phrases by using it.
Unfortunately, it likely cannot provide the real results you require to reach top 5 positions in Google as its suggestions are too random.
Here is my personal favorite!
Text Tools works based on TF-IDF principle.
What is that you might ask?
TF-IDF stands for term frequency – inverse document frequency. It shows us how often a word or a phrase appears within a document.
This makes all the difference when you try to optimize your article. It doesn’t only show you the terms that are included in a particular article buy also how many times they repeat themselves.
Let’s check it out:
Top phrases for “SEO” are:
Now, the results show a lot of different stuff and on the first glance, it seems there is no correlation.
This is not correct.
All these phrases appear on pages that revolve around keyword “SEO”.
This is why there are words such as “privacy”, “contact”, “free” and “new”. These phrases are not common for articles themselves but they definitely appear on websites’ pages.
For example “privacy” stands for website privacy tab that most sites have. Similarly, “contact” stands for contact tab.
So, this LSI tool doesn’t only show the ideal article but also all the phrases that can be found on that page.
The only problem?
Unlike previous two LSI tools this one is not free. However, if you’re serious about your LSIs I would warmly recommend Text Tools.
Here’s a special discount coupon for text-tools.net exclusively for NikSto.com readers: NIK25OFF
Another simple tool on our list is UberSuggest.io. It works very similarly to Keyword Shitter.
Here are the results I got for “SEO”:
- Seoul weather
- SEO in guk
- Seoul garden
- SEO meaning
As you can see, it works very similar to Keyword Shitter in a sense that it is able to generate incredibly high number of results based on a used root word.
However, there is an important difference.
Uber Suggest has categorization based on letters and numbers.
So, when you type letter “A” you will get results such as “SEO audit” and “SEO analysis”. Tool obviously uses your keyword as a root and then adds the second word beginning with that letter.
Have in mind that Uber Suggest works with phrases, not with words.
This can be useful for some advanced generation where you’re interested in complex keywords.
Unfortunately, it focuses on one phrase and its variations without considering synonyms and related keywords.
This is a major flaw as it doesn’t tell you enough about phrases that are necessary within an article allowing Google to detect you.
Answer the Public
Answer the Public is a different take on LSI keywords.
Instead of focusing on related keywords that are needed for your article to rank, it shows questions that internet users ask.
In a way, Answer the Public is a tool for reverse engineering LSI keywords.
You can see results grouped by:
First you find queries that people are looking for and then you provide them an article that is properly optimized.
No matter how you look at it, questions provided by Answer the Public can be used to your advantage.
If you use them in their original form, you are building a correlation between your main phrase and queries that are commonly connected to that phrase.
This can provide a boost and allow you to rank higher for keywords that are popular.
How to utilize LSI keywords?
I know I’ve talked a lot about LSI tools and generators without touching on anything else.
Like other things in SEO industry, you shouldn’t blindly follow these tools and instantly use phrases they provide you. It is necessary to be conservative and think with your brain.
Use phrases and word formations that make sense.
Google is always trying to provide internet users with premium content. You need to adapt to this rule and create articles that are natural.
LSI keyword tools are used for fine polishing; after you’ve finished the article you can check related phrases provided by one of these program and see if you’ve missed something.
As I said, LSI keywords are not as beneficial as they can be harmful.
Do you check LSI keywords before publishing an article? Do you use one of these LSI tools to do so? Tell me in the comment section below!