Latent Semantic Indexing (LSI) is a mathematical technique used to learn the relevance of terms and ideas in content. The contents of a webpage are dragged by a search engine and the most common words and phrases are collated and known as the keywords for the page.

It also deals with search relevancy. Including LSI keywords with main keywords is SEO friendly. In earlier days, search engines used the exact search query to get results. With this, search engines were not giving accurate results. Now, search engines analyze the meanings of the search queries. The content synonymical linked to the search query, are also returned. Google mainly carried out this to fight spammers trying to cheat the search engine by using keyword stuffing.


Google’s plan is to give to its users the most important content with the tremendous quality. As for signs of relevance, ever since the Panda Update of Google’s search algorithm, Google has been changing their way of detecting relevance from a keyword-match algorithm to more of a topical-match method. Some signs of quality are the website’s back-link profile, domain authority, and not being spam. A modern match means that they are trying to learn the meaning of a web page instead of simply matching keywords when deciding relevance.

So, the more relevant your content will resemble to be to Google for that topic. This will happen in greater ranking because Google will know that your content will satisfy what the user is searching for.


Article spinning software has no capacity to understand the article and rewrite them (Search engines do). The main power of Latent Semantic Indexing is its ability to expect similar words while dealing with a particular topic. When it comes to unrelated words to the topic. In those cases, it considers the content is spun.

Google defines the meaning of the content by looking at the other semantic keywords that perform along with the base keyword and establish a relation among them.


Once you activate your plug in the license, you can start using the LSI feature quickly. Start by building a new blog post, and on the sidebar. In the LSI Keyword Suggestions column, you can see the suggested keyword. I suggest you use as many LSI keywords as possible as long as your article flow is natural. Don’t try to be smart by entering in all of the suggested LSI keywords this might create SEO over optimization.