What Are LSI Keywords? Recently, a big conversation has taken place between the SEO community. Experts are talking about whether to give importance to keywords or topics. LSI is the center of this debate, Latent semantic indexing.

What Are LSI Keywords?

LSI keywords play a key role in ranking an article or a post. There is a main targeted keyword for each SEO-optimized post. But LSI keywords define a boundary line for an article.

What Are LSI Keywords

That helps the writer to maintain consistency & flow in an article. Which keeps your readers engage all the time & didn’t get them bored. However, before making our SEO strategy, we need to know about the Latent Semantic Indexing.

Latent Semantic Indexing (LSI)

LSI keywords have different definitions. In simple, all the supporting keyword related to a topic is considered LSI.

It is a mathematical technique that perceives the way words cluster together in a foreseeable way. Mostly people search for a topic using different ways & queries. But there is some part of the search query which remains the same.

That is the actual keyword & all the other supporting words consider as LSI. This means that there is a possibility a user may not use only the keyword term but the LIS term.

LSI Keywords

There are phrases or words semantically related to the main topic. These words are often found with the main keywords sharing the same context. Google algorithm uses the synonyms or LSI terms to check the quality & the relevancy of content.

For example, if you are writing some information about a product. You can cover the LSI keywords by providing some useful information about your product.

Some people put more emphasis on keyword density but the use of LSI keywords is more important than just focus keywords.

What Is The Purpose Of LSI Keywords?

LSI keywords help the search engines to find what a searcher is looking for. In other words, it helps the search engine to know what your content is about. Given below are a few examples to help understand the concept.

Example# 1

If a person wants to eat tacos for dinners, he might search for the best tacos in the town. Let’s say you have a page with the “best tacos” as your main keyword. But a search engine might look for other words along with it such as:

  • Salsa
  • Guacamole
  • Handmade tortillas

It is because high-ranking pages used these words and also the user searches about them too. Other personal blog posts can only mention “best tacos”. But if your page reviews for a tacos shop then you might include other LSI keywords too.

Hence when a user will conduct a Google search your page will be on the top with highlighted words that might don’t exactly match his search term.

Example# 2

If you have written a blog or a page about Cars then how does google will know which meaning of cars is related to your page? The Google crawler will crawl your content. Analyze the used keywords and their synonyms and rank your content accordingly.

With the help of  LSI keywords Google decide the actuall context of your content.

Your post is probably about the vehicle “cars” if Google finds the words:

  • Vehicle
  • Used
  • Buy
  • New
  • Sell
  • Dealers
  • Repair etc.

If it finds the following words then your post is about the movie.

  • Film
  • Written by
  • Directed by
  • Produced by
  • motion pictures
  • Walt Disney etc

Example# 3

Let’s have an example. If you are writing a post on the topic of “Best Blond hairstyles”. Then you can cover the LSI or synonym keywords like:

  • Long Blond Hairstyles
  • Short Blond Hairstyles
  • Latest Blond Hairstyles
  • Blond Hairstyles for 2019

All these keywords cover a different aspect of the content. You can use these keywords to engage your audience & give them quality information.

Hence LSI keywords precisely define what your content is about. So when a user searches these keywords, it will show them the related pages.

Why Search Engines Use LSI Keywords?

In the past, keyword density was the only measure for relevancy, by Google, of a post or page, to a given search term. However, people abused keyword density horribly and spammed it. So Google started looking at LSI Keywords.

As it is mentioned before, certain words gather predictably. Google tries to understand these patterns and conclude the meaning behind the search query.

Hence LSI keywords allow Google to precisely match between what a person is searching for and what he finds in the search results.

How To Find LSI Keywords?

This will help you know the words recognized by Google and semantically relate your focus keyword as well. Given below are some of the best ways to find your LSI keywords.

Google SERP Results

Just enter your main keyword in the Google search. Then find LSI keywords in the SERP snippet. For example, you are creating content on myalgia.

This exercise will give you many LSI keywords for Myalgias. And you have just looked at 4 of the SERP snippets in the top search results.

Google Auto Suggest

The AutoSuggest function of Google starts suggesting several semantic terms that people search for, as soon as you start writing a keyword or search query.


However, clicking on different keywords will give you more LSI words. So you just have to keep drilling down the entries in Auto Suggest and find more keywords.

Where To Use LSI Keywords?

The next question arises, where to use LSI keywords in your content. You can use them:

  • In headings
  • Throughout the individual post or page content that you want to rank
  • When possible use them as link anchor text
  • Use them in the alt text of images
  • You can also use them as the synonyms of the main keyword.

For the topics that are highly important to your business, you can also generate additional content focusing on the LSI and long-tail keyword variations. After that, link to it using the variation as the anchor text.

Instead of targeting main keywords, start focusing on topics and LSI keywords for your content. While working on the usual elements of on-page SEO, select keywords from this list of terms rather than forcing in your main keyword.

As it seems, it is not too difficult to take advantage of Latent Semantic Indexing keywords. Understanding LSI keywords give you access to do all of this more strategically and pretty easily.

LSI keywords are at the heart of the new approach of Google to understanding the content. That is why it is highly important to be aware of them as you optimize your blog posts or page for SEO.

Moreover, by researching the LSI keywords that are associated with your main keyword, you will get a better grasp of the structure of your topic. Also, that will help you write an article with high topical authority.

In the SEO industry, the concept of co-occurrence is very important. Search engine algorithms are so efficient that they can easily identify the contextual meaning of content. So one must not ignore LSI keywords for successful organic search.

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