What are Meta Keywords?
Meta Keywords are used behind the scenes of a website page to communicate information about the page to reach the different search engines on the web. You can choose some relevant important words from your article and use them as meta keywords. They can be some small important phrases as well. Any special characters like", #, $, %, -, +, [,], \, /; etc should not be used in these words.
Meta keywords were used to let Google and other search engines know which words related to the topic of your article were most relevant to the content on the web page. However, Meta tags have less or no value for search engines at the present time. Meta keywords were used by search engines from 1995 to 2009. And from 2009, a massive decline started in the utilization of the meta keywords. A few site searches still use meta keywords elements, but most of the big websites have totally removed the use of this factor.
Presently, search engines like Google, Yahoo, and Bing do not give much importance to meta keywords like they once did. Thus, rather than wholly focusing on keywords, more attention can be given to Title and Meta description, which have an extensive influence on the search engines