My sites have mobile version with sub domain "m" for example example.com & m.example.com Right now i am redirecting all user to mobile version from main domain (if they are using mobile devices) and both domain have same content i want to improve my SEO with the help of this mobile version my websites want good search rank on mobile devices also and is it good idea to submit subdomain in webmaster tools as new domain? What should i do to improve it ?
Some quick points: Make sure you handle Googlebot and Googlebot-Mobile each wil its own relevant access (you can do that using the Robots.txt file). Include a link form the mobile version to the classic version. Create an XML sitemap file for the mobile version and submit it to Google Webmaster Tools.