Recently, Google dropped a subset of Bing’s website from its index. The Bing Discover pages were completely dropped out of Google’s search results and resulted in Bing losing millions of pageviews from Google search. Google’s webmaster guidelines say, “Use the robots.txt file on your web server to manage your crawling budget by preventing crawling of infinite spaces such as search result pages.” Google specifically has said for a long time they do not want search results in its search results. And Bing Discover was just that.
It looks like Google is not just indexing but also ranking Google News search results pages and landing pages in Google search. This comes shortly after Google reportedly dropped Bing Discover search results pages from its index allegedly because it violated the webmaster guidelines of not noindexing search result pages.