No, SEO (Search Engine Optimization) keywords are not case sensitive in the sense that search engines do not distinguish between uppercase and lowercase letters in search queries. This means that “SEO” and “seo” would be treated as identical keywords by a search engine.
However, there are some situations where the case of keywords can have an impact on SEO. For example, the URL of a page, which can include keywords, is case sensitive. So, if you have a page with a URL that includes the keyword “SEO”, changing the case of the keyword in the URL could impact your search rankings.
In addition, it’s worth noting that using consistent capitalization in your content can help improve readability and user experience. While it may not directly impact your SEO rankings, making your content easy to read and understand can improve engagement and ultimately lead to better search performance.