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Designed for different purpose
XML and HTML Sitemaps are designed for different purposes as XML sitemap is specially designed for the search engines as it is submitted to the webmaster tools for crawling the website. Whereas, HTML sitemap is designed for humans as they can clearly see it on the website as an extra web page and all the visitors of the website can make use of it for understanding the website.
Automatically gets updated
Another major difference between XML and HTML Sitemaps is an automatic update. Since, HTML sitemap is designed for humans for navigation purpose only, it cannot be updated automatically. An XML sitemap is designed for search engines which can be updated automatically by setting up a frequency. This is helpful in linking the new posts with the webmaster tools automatically.
https://www.welllivingshop.com/pillows/