How do the search results for a site: query compare to just quoting what appears to be a DNS domain containing punctuation tokens? inurl:news.ycombinator.com

How do the search results for a site: query compare to just quoting what appears to be a DNS domain containing punctuation tokens? inurl:news.ycombinator.com site:news.ycombinator.com "news.ycombinator.com" news.ycombinator.com