Latent Semantic Indexing (LSI): How Does It Affect SEO

No longer will you have to focus on a single keyword to improve your SEO rankings. There are many ways to get better results, and one of them is by using Latent Semantic Indexing (LSI) keywords.


If you are not yet familiar with LSI keywords, worry not. LSI is a relatively old term in the SEO industry that is becoming increasingly relevant as of late. You can use LSI keywords to enhance your SEO and content marketing strategies in Singapore.


What exactly is Latent Semantic Indexing, and how can it affect SEO services? Let’s find out.




Latent Semantic Indexing (LSI), also known as Latent Semantic Analysis (LSA), is the process of analysing your content and keywords to grasp the concept of a specific document.


LSI or LSA has existed since the 1960s, with the concept itself patented in the late 1980s. It works by using mathematical techniques and equations to identify relationships between ideas and words. LSI is also beneficial for finding relations between terms, analysing word association, and comparing documents.


When it comes to SEO, LSI keywords are related to the main keywords people use for creating content. You can use LSI keywords to make search engines understand what your content is all about.




The purpose of using LSI keywords is to enhance your content and make it more searchable on search engines. Doing so should help search engines like Google understand the context of your website even more.


LSI keywords can also improve your web visibility. Try to use LSI keywords as much as possible to give your SEO rankings a subtle boost. Not only that, but your content will become even more relevant to search queries if you use enough LSI keywords.


The concept of Latent Semantic Indexing is not new, nor is it game-changing for SEO services. However, if you use them correctly, LSI keywords can significantly improve your web visibility. By adding LSI keywords to your content, you can reach more people on search engines based on relevant queries.


LSI affects SEO in several ways:

  • Improve web visibility
  • Boost your rankings
  • Enhance the relevance of your content
  • Establish credibility
  • Decrease bounce rates

It is clear as day that using LSI keywords for SEO and content marketing strategies is an excellent way to improve your rankings. Of course, you still need to incorporate a few other SEO strategies for improving your rankings. Nonetheless, utilising LSI keywords is a simple yet effective way to achieve better results.


KNOW MORE: The POEM Framework: How To Optimise Your Marketing Strategies?




Remember how Google gives suggestions based on specific terms and phrases? The keywords that appear below the search bar are an example of LSI. Keywords that are relevant to your search query will pop up to provide you with more accurate results.


An Example Of Latent Semantic Indexing Keywords

For example, take a look at the keyword “digital marketing”. Notice how Google has listed several similar or related terms and phrases below.


Try to use relevant or similar keywords as the example shown above. Fortunately, LSI keyword research is easy. The hard part is using LSI keywords with a high amount of search value. To do so, you need to consider two factors when finding LSI keywords: intent and context.


Intent refers to the user’s purpose of typing a keyword into a search engine. The user’s intention for using such keywords could be to obtain information, purchase a product, or learn something new.


On the other hand, context refers to terms and phrases that are relevant to your content. These keywords can help search engines index and rank your website on a search engine results page (SERP).




LSI keywords can improve your SEO rankings if you use them correctly. Just remember to avoid overstuffing your content with too many keywords. Doing so should prevent your website from ranking low on a SERP.


For more information about and digital marketing in Singapore, contact our SEO agency at 6391-0930.