Latent Semantic Indexing (LSI) copywriting is a method of creating optimized texts for websites that focuses on introducing keywords and their semantic synonyms into the content. The goal is to make the text easy to understand for search engines, while maintaining a natural sound for users. Instead of focusing only on exact keyword matching, LSI copywriting uses related terms and phrases that help algorithms understand the topic and context of the page.
Literally, LSI stands for latent semantic indexing, which is a technique by which search engines determine the relevance of content by analyzing the presence of related terms. For example, if the text is about “healthy eating,” the algorithm may recognize related words such as “balanced diet,” “vitamins,” and “physical activity.”
Applying LSI copywriting helps websites rank better in search engines because the content is semantically richer and easier for algorithms to interpret. At the same time, the text remains readable and useful to readers, which improves the user experience and increases audience engagement.