sourcevalues we support with Bing.
bingsource is designed to retrieve the content of direct URLs of various Bing pages. Instead of sending multiple parameters, you can provide us with a direct URL for the required Bing page. We do not strip any parameters or alter your URLs in any other way.
bing_searchsource is designed to retrieve Bing Search results pages (SERPs).
10Bing SERPs, starting from the
11th page, for the search term