I guess target="_blank" would open new tab/Windows but will switch the tab as well, and no way I can find them stuff in html, Yes but when we click in link pressing control key it opens the link in new background tab, Using javascript we can stimulate same Here is code I found

function openNewBackgroundTab(){    
    var a = document.createElement("a");    
    a.href = "http://www.google.com/";    
    var evt = document.createEvent("MouseEvents");    

    //the tenth parameter of initMouseEvent sets ctrl key    
    evt.initMouseEvent("click", true, true, window, 0, 0, 0, 0, 0,true, false, false, false, 0, null);    
    a.dispatchEvent(evt);
}

As confirmed in both: source1 source2

there isn't a function that works throughout all browsers. There are options for popups, but this isn't a good idea as many use popup blockers.

To reiterate the first source, it's a browser setting for each user to decide to open a new tab in the background, or not. And because users decide this in their browser settings you will get inconsistent experiences.

You can try using window.open to open the new window and returning false to prevent the default action.

<a href="http://example.com/"  target="_blank" onclick="window.open( 'http://example.com/' ); return false;">Open New Link</a>