The goal is to get my main keyword on all page URLs both when browsing the page, and on the green URL in Google search results. Many sources say this will improve search results, and by my own doing, my domain name doesn't contain my keyword in full.
While on the homepage, I would like the URL to show: website.com/keyword
On sub-pages like 'contact us' I would like the URL to show: website.com/keyword/contactus
How to do this, and is there anything to watch out for??