Link: www.yourdomain.com - To check all the backlink of your site. You can also check the back link of any web site with help of this command. For example: - link: www.domainname.com Site: www.youdomain.com - This command is use to find all the indexed page of you website and it also show the ranking of every page. Related: www.yourdomain.com - The Google command [related:] will list web pages that are "similar" to a specified web page.
