Using search bar in safari to search a specific site One can do searches from the address bar in safari. However one can only specify one search engine to use. Id really like to specify that I want the search to happen in google/youtube/wikipedia etc. Id really like to be able to do searches from the address bar in safari.

I had this in chrome a while back, and I'd love to use it in safari. Does anyone know if an extension is available to do it?

a description of the functionality can be seen in this gif:
https://www.wired.com/gadgetlab/2013/09/h2-chrome-omnibox/chromebar_gif_slow_it_down/
You can use the same syntax in Safari's address bar as you would directly in Google etc
site:
Example
iTunes playlist site: apple.stackexchange.com
Result