WouterB wrote:Made it look like a url?
By using the full URL syntax, he made it clear that the site operator accepts a URL as input. Subsequent replies showed people that the syntax can be relaxed.
But seriously folks this site operator stuff is more than 10 years old. In todays web world there are specialized databases that we use, and they have their own search functions that can be more appropriate than external crawlers. For example, if I search for "Whitney" on Summitpost, I don't care if a crawler found that more links go to an album about the mountain, I just want the Summitpost page on Mt. Whitney (even if it's unpopular). A search on Wikipedia itself is better than a Google search with the site operator because the Wikipedia search returns disambiguation pages and makes an effort to put topical pages first. That's what's nice about this DuckDuckGo "!" operator, it tunnels you right into those specialized site searches. Maybe Google has that feature too (but it's not "site:")