backlink

this is right link to make your site to be a best or be upline to the first rank, don't forget to do it.
Conducting optimization / SEO (search engine optimization) is an activity that is boring, tiring and even repeat the same job over and over again.
Because as we all know, the core of this SEO is backlinks. As good as any on-page optimization that you do, if not accompanied by quality backlinks and number of lots, it will be difficult to win the competition position in google search results for certain keywords.