View links pointing to your site, & see the quality of the links. Here's a list of pages to help you get the best out of the MOZ Backlink Checker
Curious about what sites are linking to yours? You can find out who is linking to your site using the free backlink checkers available from the page.
Looking for information on backlinks? Here's a page loaded with resources that gives you all you need to know about backlinks for a good introduction
Quality links pointing to your site increase the possibility of better rankings. Here are some resources to help you identify inbound links to your site.
Bad links pointing to your site can hurt your rankings. A few won't but many will. Have a look at these resources to identify how many you have.
First, you need to understand backlinks & then you can work at getting them. Acquiring backlinks isn't easy. Have a look at this resource page for more.