A sitemap is a list of website pages use to index all your website URL. There are three types of sitemap and that is ROR Sitemap, HTML Sitemap and XML Sitemap. You can make Sitemap both manual and through tool. I have mention below top ROR, HTML and XML Sitemap Generator tool.
What is XML Sitemap?
XML stands for Extensible Markup Language (XML). XML sitemap is a formatted xml file on your web server. It includes all URL of your website that you want to index in the search engines. XML sitemap not only help google bots to crawl your urls, It also show the last modification date of your web-page. You can submit xml sitemaps to all search engines like Google, Bing, Yahoo and others.
Free Online XML Sitemap Generator Tool
What is HTML Sitemap
HTML Sitemap is designed in html includes all links of your website according to its category. HTML Sitemap not only help search engines bots to crawl pages of your website but it also help your website users to find any url according to its niche easily.
Online HTML Sitemap Generator Tool
What is ROR Sitemap
ROR is a rapidly growing XML format for describing any object on a website (sitemaps, products, services, menus, images, reviews, contact info, business info, etc), so any search engines can better understand its content.
Note: To make your ROR Sitemap automatically readable by all search engines, choose the “ror/rss” format.
Free ROR Sitemap Generator Tool
Why Are XML Sitemap so Important in SEO?
Because they allow Google and other search engines to easily find important pages on your website and index them all, even if your internal linking is bad. This is important because without Sitemap Google and other search engines indexes and ranks specific webpages, not whole websites.