What is LSI?- Latent Semantic Indexing

Around the Penguin update, latent semantic indexing, a.k.a.  LSI, was introduced into the metrics for determining relevancy and site ranking. Latent Semantic Indexing is another metric in the algorithm Google, which is basically Google’s bots reading the content and scanning for use of synonyms that relate to a specific keyword phrase.How does Latent Semantic Indexing effect my SEO Rankings?

How does Latent Semantic Indexing affect my SEO Rankings?

The short answer: Latent Semantic Indexing greatly effects your site rankings.

Here’s Why:

Since the Penguin update, Google had made the move to LSI over direct keyword usage on onsite optimization. This means that websites strictly using specific keyword phrases repeatedly could have the potential to be penalized and discerned as spammy content. While direct keyword matches are still valuable, the further relevance created with synonyms of a desired keyword phrase or set of phrases is enhanced for both the user and the indexing of the page.

In order to avoid content being deemed as spammy it is best to keep your content within the allowable 3-5%, as well as leveraging keyword phrases containing synonyms related to your desired keyword phrase. For example, if you are targeting doctors in New York as your keyword phrase, within your content it would be beneficial to use other synonyms like: medical practitioners, physicians, clinicians, and health care practitioners in place of doctors within your keyword phrase.

As a rule of thumb, avoid over optimizing your pages, whether it’s with related terms and phrases or by repeating your keyword phrases endlessly and butchering your content. LSI enables you to have enriched content while detecting what exactly you are optimizing your page for. It can’t be stated enough that your content should be providing value to your viewers instead of being optimized for Search Engines. Failure to abide by this advice and your website(s) may draw a few unwanted penalties and your efforts will have been for nothing. Don’t get sand-boxed!Latent Semantic Indexing

Keeping your keyword count in check

As mentioned above, it’s absolutely imperative that your keyword count doesn’t exceed 3-5%, so for every thousand words your content should contain fifty words relating to your targeted keyword phrases.

Using an equal balance between direct keyword phrases and related keyword phrases is recommended. Remember that repetition of your direct or related phrases in close proximity to each can be very harmful to your page’s indexing. Within your content, you should consider appropriate placement of your phrases and the types of tags that they are used in, i.e. using your most important keyword phrases for heading tags (h1) and your secondary or tertiary phrases for subheadings (h2-h3h4-h6 carry far less value). 

Final thoughts on Latent Semantic Indexing:

When used effectively, the content on a webpage will be boosted dramatically by the efforts of the SEO specialist, likewise, the user’s experience will also be enhanced. Google’s mission is provide the best relevant information possible, and by aligning your goals in parallel with theirs, your efforts as an SEM will be rewarded. When used effectively, the content on a webpage will be boosted dramatically by the efforts of the SEO specialist; likewise, the user’s experience will also be enhanced. Google’s mission is providing the best relevant information possible, and by aligning your goals in parallel with theirs, your efforts as an SEM will be rewarded.

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