WordPress Permalink is a link where your posts, pages, categories and tags are link to and accessible by users and search engine spiders. Having a nice and well organized permalink is beneficial not only for visitors but also better for search engine spiders to read and index.
A common mistake done by most of the people, they don’t pay attention for permalink when they first install WordPress. They just start jumping to install theme and plugin. But it’s not a good habit for you if you are really want to get your website better position in Search Engine Result Page – SERP.
I will suggest you to configure permalink first, as soon as when you install WordPress.
WordPress Permalink Setup
Permalink option for WordPress, you can find under “Settings” tab.
You can use any permalink for your wordpress but for User Friendly and SEO purpose, it is a wise decision to use “Post name” option. This “Post name” permalink will generate a Clean, Machine and Human Readable URL of your WordPress site.
To know more about WordPress Permalink Setup and Troubleshooting please visit https://codex.wordpress.org/Using_Permalinks