Aims. To present the tools known as Keyword Research Tools, which are frequently used in SEO and SEM to identify keywords that can help a website to improve its position on search engines.Methodology. The main tools in Keyword Research are analyzed – some of them integrated into sophisticated marketing platforms, while others are freely available. The work focuses on the description of their main functions related to keywords.Results. The importance of knowing how users search to optimize webpages is emphasized. Tools that can support optimization by identifying the relevant keywords are also evaluated.
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