WordPress URL parameter for getting the comments feed

The parameter you need to apply to WordPress’ index.php in order to get the feed for comments seems bizarrely eluding, so I’ll make a note of it here for future reference: it’s feed=comments-rss2. So when a WP blog at http://domain.com/blog/ doesn’t have pretty permalinks (which renders the comments feed URL to http://domain.com/blog/comments/rss2), you’ll find the comments feed at http://domain.com/blog/?feed=comments-rss2.