Open Site settings → Pages in the editor to see this entry. Its web address (/example-page-delete-me/) comes straight from its filename, which itself came from the Title the first time it was saved. Change the Visibility field to Members only or Committee only and a signed-out visitor gets redirected to the login prompt instead of seeing the page. Uncheck Published to archive it without losing the content, or delete the entry entirely once you’re happy it works. Turn “Show in navigation menu” on and it appears in the main menu and footer automatically.