Simply said, adding meta keywords to boost the search ranking of your website is no longer as vital as it previously was.
They are no longer used by search engines. They are ignored by Google and Yahoo, which instead utilize other elements to determine search rankings. Bing, on the other hand, solely employs meta keywords as a spam signal. Your site will be punished if your precise meta keywords do not present in your document.
Meta keywords, on the other hand, have applications that aren't linked to SEO. For starters, if your CMS uses meta keywords for internal search, these might be handy. When a search query is made, a search engine integrated into your website can retrieve saved keywords.