According to Google 'Google Sitemaps is an easy way for a website owner to get in the Google index. It's a collaborative crawling system that enables you to communicate directly with Google to get Google informed of all your web pages, and when you make changes to these pages. Our sitemap creation tool will also tell you about problems that are going on with your website - like broken links. The default settings of the sitemap creator is NOT to submit this broken links files as they will hurt your website's ranking. If this happens please fix the broken links as soon as possible or contact us to have your site fixed.