Why is Google not crawling my site?

[Canapin (Coin-coin le Canapin)]

I don’t know about sitemaps but I’ll quote Discourse’s team on this:

@justin

the sitemap plugin isn’t necessary for sites to be indexed by Google as Discourse is already structured to allow crawlers to index it easily. But for large sites, the plugin can make it marginally faster.

@codinghorror

Site maps are useless and unneeded.