Slugs are the few words you see at the end of the URL address of a page or blog post, which describe what the page is about in brief. It could be the same as the title of your page or blog post, or could be something different. Whatever it is, it should be similar and relevant to what the page is about. You can use letters, numbers and hyphens while creating your slug. However, if you don’t create a slug for your page, WordPress will do it on its own by selecting the title of your page as the slug.