I would like to do a keyword search but with only top-level pages as result.
For example, I want
https://superuser.com as a hit but not
https://superuser.com/questions/230975/ on my search.
Only that I don't want to restrict it to a single site, superuser up there being an example. I want to restrict it to top-level pages only.
Is there a pattern for Google web search to do this or in case there isn't, any other search engine that allows it?