An XML Sitemap provides you the way to let search engines crawl and index the new URLs on your website.
With static websites, you need to generate and change the sitemap again-and-again manually to include new URLs within it. But if you use WordPress, you don’t need to do that stuff manually, as you have some awesome plugins to do that automatically for you.
Why do I need XML sitemaps on my WordPress site?
Generally, search engine services like Google & Bing Webmaster Tools make use of XML...