Now a days, Google is keep on updating its algorithms.So, you must need to focus more on quality of back links and content. 

Here, Some of the best SEO techniques in 2016 are:

1. Social Bookmarking
   
2. Guest Posting
   
3. Reviews posting
   
4. Question and Answers
   
5. PDF/PPT Submission
   
6. Infographics
   
7. Blog Updation
   
8. Article Submission.
   
9. PR submission
10. Product Listing
11. Profile creation
12. Business Listing. Etc,

SEO strategy is one of the main marketing strategies that can help online retailers to build a successful Internet business is search engine optimization (SEO),

The process of affecting the visibility of a website in a search engines like Yahoo, Google, Bing. In order to bring you a traffic or leads.