What is important is Site map in seo

[Donaldparker]

Using sitemaps has many benefits, not only easier navigation and better visibility by search engines. Sitemaps offer the opportunity to inform search engines immediately about any changes on your site.
Sitemaps also help in classifying your site content, though search engines are by no means obliged to classify a page as belonging to a particular category or as matching a particular keyword only because you have told them so.
The purpose of a site map is to spell out your Web site’s central content themes and to show both search engine spiders and your visitors where to find information on your site.