What Is Latent Semantic Indexing In SEO?


Today In this post I’m going to tell you about latent semantic indexing or LSI. This is a phenomenal tactic that you should be using in all of your SEO copywriting.

Google has a very difficult job in trying to rank a webpage on SERP. A user does a search on a search engine. Google has to find the 10 most relevant documents to show on this first page of results, and latent semantic indexing is really just a way to help them do that.

If you have any page or post on your website that you want to rank higher in Google search result or in any other search engines, and they’re not quite there, you absolutely
should be applying latent semantic indexing principles to your copy.

While we talk about search engine optimization, Latent semantic indexing or LSI is the most important part of copywriting these days, specifically copywriting that’s beneficial for search engines. This is a component of search engine optimization, and search engine optimization or SEO is a part of digital marketing that your entire digital marketing strategy should be composed of much more than just search engine optimization.

From an on-page optimization perspective, the very basic things are this. Use your keywords two to three or multiple times according to content length. Use that primary keyword exactly as it’s written maybe two to three times in your document.

The basic idea here is that there’s a number of keywords that aren’t necessarily synonyms but are incredibly contextually relevant to your primary keyword.

See our guide on Top 5 Free Keyword Research Tools to Boost Your SEO for more details.

What is Latent Semantic Indexing?

Once you’ve done your core copy, your regular writing for humans, and then you’ve added. your primary keyword and some synonyms in there, then you want to look at latent semantic indexing.

Latent semantic indexing, as I said, is just a fancy way to say other contextually relevant keywords. It’s words that are thematically related to your core keyword.

If my core keyword was Digital Marketing, some other synonyms for Digital marketing might be online marketing, SEO, and more.

Latent semantic indexing keywords would be words that are thematically related, but not synonyms. In the Digital Marketing case, it would be Google Ads, SEO, something like that.

Google understands synonyms related to that keyword, so go ahead and sprinkle a couple of synonyms in the copy where it’s reasonable. Always keep in mind that, you’re creating the content for for humans, not for search engines.

See our guide on Why You Should Focus on Long-Tail Keywords For SEO for more details.

Ways to Find LSI Keywords

You have your primary keyword. You’ve written this great content that users love and you’ve added your primary keyword in there two or three times. You’ve added a couple of synonyms in there two or three times. Now you need to figure out what your LSI keywords are.

There’s a couple of different ways to do this.

#1. LSIGraph.com :-The basic idea here is you plug your primary keyword in, and it will render a bunch of  results for you that show you latent semantic indexing related keywords.

#2. Google :- Search for your keyword. Then once you’re in the results, scroll down to the bottom. Searches related to your keywords. Google actually gives you these answers. Google thinks the following queries are related to your initial query.

#3. Google Keyword Planner :- If you have access to Google Ads, you can also use their Keyword Planner tool.

#4. Ubersuggest :- You can use Ubersuggest to identify potential LSI keywords related to your primary keywords. Simply enter your primary keyword, and this tool will produce a list of related search queries based on difficulty, search volume, and CPC.

you can use the above tools, I like LSIGraph and Ubersuggest, and just Google to find these thematically related keywords that aren’t necessarily synonyms, but are very relevant contextually to your document.

That is latent semantic indexing or LSI. Hope that was useful. If it was helpful, and if you learned something today, go ahead and share this post with your friends. for even more digital marketing tactics and tips from us, I would love a comment. Thanks a lot.

See our guide on How to Do Keyword Research Steps & Strategy for more details.


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