via fixrunner.com => original post link
Permalinks are the URLs of pages and individual posts published on your WordPress websites. Name Permalink is short for “Permanent Link” – meaning these links can always be used to access your pieces of content. We’ll take you through the process oc creating a custom WordPress permalink.
WordPress permalink by default has the URL structure https://yourwebsite.com/?p=123.
This default permalink structure is bad because it offers no clue about the post. The user only gets to know what the post is about by clicking on the link. As a result, users may be less inclined to visit the page, and search engines less inclined to rank it.