DuckDuckGo has a "ddg" bang that lets you search on DuckDuckGo(duckduckgo.com)

https://duckduckgo.com/?q=whatever+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg+!ddg