What Is The SBMM Sitemap Generator?
The SBMM Sitemap Generator crawls a public website from the page you give it, follows the site's own links breadth-first, obeys its robots.txt, and writes a sitemaps.org 0.9 sitemap.xml of every page that answered and asks to be indexed. A run covers up to 50 pages without an account and up to 500 with one.
A sitemap is how you tell search engines which addresses you want them to know about. Without one they rely on following links, which means pages few other pages link to are found late or not at all. With one, every address you want indexed is one fetch away. Google recommends a sitemap for large sites, new sites with few links pointing at them, and sites with a lot of media.
What goes into the file is only what the crawl could see. Pages marked noindex and pages whose canonical names another address are left out by default, because listing them asks search engines to index something the page itself says not to. Every page left out is reported with the reason, so you can see what the sitemap does not contain as clearly as what it does.