What Is a Bang?
A bang, or !bang, as it is commonly known, is a term you can include with your DuckDuckGo search to limit your results to a particular website or service
example, if you are searching the web with DuckDuckGo and you want to limit your results to How-To Geek website, you can include “!howtogeek” with your search term
Searching for “windows 10 !howtogeek” will perform a search for “windows 10” using How-To Geek’s own search engine
more here:
fun fact
The name comes from an old UNIX term for an exclamation point, which is used to invoke the feature in searches.