In general the Page URL for most websites will be the Page Name with any spaces converted to dashes, but Wordpress has a system of slugs where you can update the page URL, so you may need to confirm that the URL you have set in Wordpress is correct. Here is how to do this in Wordpress:
Page Name: One
Page URL: mywebsite.com/one.html
Page Name: Page One
Page URL: mywebsite.com/page-one.html
Page Name: My Amazing Page
Page URL: mywebsite.com/my-amazing-page.html