Off-page SEO depends on SEO work conducted outside the web page boundaries. This includes :
a. Backlink Building
b. Social Media & Bookmarking
Backlink building is the most effective and standard method of Off-page SEO. By building backlinks to your site from other websites, you are attempting to gather more reputation for your website. You need to buy backlinks if you want to rank your keywords. This will help you rank higher in search engines as part of your overall SEO strategy for your website.