The sitemap is not just for Google but for most search engines. There are many uses of Sitemaps, such as
– URL list: A complete list of your website URLs which you would like to show users and search engines
– Priority: Give the crawler a sense of selection, which are your priority pages and which can be held off
– Details information to search engines with extra tags such as lastmod and changefreq
– To track search engine bot activity
– It shows the hierarchy of your websites, easier to understand and crawl
– Auto update: it gives an auto-update notification to the search engine for the latest changes and crawl
The XML Sitemaps plugin accomplishes all the above and will create a sitemap for your site.