var venntov_robotVals = "index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1";
	if (venntov_robotVals !== "") {
		document.querySelectorAll("[name='robots']").forEach(e => e.remove());
		var venntov_robotMeta = document.createElement('meta');
		venntov_robotMeta.name = "robots";
		venntov_robotMeta.content = venntov_robotVals;
		var venntov_head = document.head;
		venntov_head.appendChild(venntov_robotMeta);
	}