Keyword in website tag repeat the question

Can keyword in the site tags are be repeated? I have seen some sites use repeated keywords in the tag approach, but the website in Google and other search engine ranking is very good, and very stable, although they do not frequently updated website content, or even no external links.

I don’t see any point in repeating your keyword in your site tag. Once is enough

Google doenst looks at the keywoord tag anymore, you kan create keywords in your content/blog.

At first, can you tell me are you talking about tags for website content or website page source because question is very confusing.