You can build quality backlinks by following ways:- 1.duplicate competitors' best backlinks. 2.analyze competitors mentions. 3.You should build backlinks from infographic. 4.Do more and more guest blogging. 5.Buil a great internal structure. 6.Reachout and advertise your best content everywhere. 7.Do broken link building i.e. finding 404 error in blogger's website and informing them about it. It may take time but it worth it. Hope this is helpful.
Backlinks (also known as “inbound links”, “incoming links” or “one way links”) are links from one website to a page on another website. Google and other major search engines consider backlinks “votes” for a specific page. Pages with a high number of backlinks tend to have high organic search engine rankings.
Content, good content is very important, and then publish these content on guest blogs.