meta tags is html coding which is based in a head because search engine read over header keywords but when we generate meta tags its totally match with domain name. Your domain name is basic keyword of your web page e.g
Keywords" content="right keyword , keyword right, chose keyword , find right keyword, right way of seo, right way of keywords, how to use meta tags, why directories not approve us, right way of forums use meta tags, why we use meta tags, right way of meta tags