We already read about sitemaps and xml sitemaps. XML sitemaps is a collection of urls in a website, by submitting xml sitemaps to search engines website crawls by search engines instantly and helps in boost search engine rankings.
In WordPress, there is a lots of plugin available for xml sitemap creation. Some of widely used plugins are –
Google XML sitemap – It is specially designed for WordPress XML sitemap creation. It also incluides custom urls. It has 15,028,715 downloads till now.