Do I submit a sitemap for a highly dynamic site or not? If so, what's the best way to go about doing it?

[Jane.com]

I do SEO for online boutique marketplace. I've been here for about 4 weeks and no one's done there SEO (they've been around for about 5 years), so there's lots to do. A big concern is whether or not to submit a sitemap, and if I do submit one, what's the best way to go about doing one.

[becole]

Welcome to Moz! It looks like the site has about 169,000 pages indexed Google currently. So, if that's the number of pages you have on your site, then they're crawling and indexing it just fine.

Since you did bring up the fact that you're dealing with dynamic pages, or dynamic URLs, it is important that you have a sitemap (probably multiple sitemaps) available so that Google can quickly crawl and have the proper URLs indexed.

You currently don't have a sitemap file here: https://jane.com/sitemap.xml which is where it should reside. I recommend also listing the sitemap file(s) in your robots.txt file here, as well: https://jane.com/robots.txt

Your site's web development team will need to auto generate the sitemap files, which currently isn't happening right now. I recommend having up to 50,000 URLs in each file, as it can get quite large if it's over that number. If you're able to generate the files based on certain criteria (such as main pages in the site, categories, or something else), then that would be helpful, as well.

[Martijn_Scheijbeler]

Like Bernadette already mentioned, it's very important as well for a dynamic site to have a sitemap. It will make sure that the pages that are new are submitted to Google faster then them finding out by themselves what kind of pages are new.