百度SEO与meta name="applicable-device"content="pc"标签

百度可以通过基本html特征来判断是否适合无线端浏览:
PC站:<meta name="applicable-device" content="pc">
手机站：<meta name="applicable-device" content="mobile" />
响应式网页可标识：<meta name="applicable-device"content="pc,mobile">