The Sitemap generator will create/update an xml sitemap for a website so that search engines can get the latest urls added to your website. It will automatically ping Google so that new URLs are picked up really fast.
This is a bespoke Content Management System (CMS) that I've written in both PHP and C#.NET. It is for my personal use and gives me the features that I need to easily maintain my existing sites and create new ones.
This tool is going to help in Search Engine Optimisation (SEO), off-page, by researching websites where links can be obtained that will pass SEO benefit to the linked website.