section of a website's code where the title tag and meta description also live.
In the early days of search engines, including your important keywords in the meta keywords section used to be an effective way to improve your SEO. Today, search engines do not look at the meta keywords to determine what a web page is about and what search queries it should rank for.
It can be helpful to include the keywords you have optimized a page for in the meta keywords section. This way you can remember what keywords matter for the page, and it can help other people that may edit the page's content know what keywords matter.
This is what the HTML code for the meta keyword tag looks like: