I was wondering how websites get their search bar to display in google results, for instance if you type "youtube" into the google search bar on googles homepage, it comes up as the first link, underneath the main URL, there is a sitemap and a search bar "Search Youtube" where you could search youtube without clicking on the main URL... how is this achieved? I dont even know what to call it so I couldnt really google a buzzword/tutorial for it thanks!
i think it still depends on the popularity of a website.. and also the type of your site.. maybe if your site looks like web searching type.. google might show that search bar..