backlinks is still the most effective:

 

Building backlinks is still the most effective way to increase SEO rankings and traffic. But you have to be cautious with how to build quality backlinks. We’re now at a point where only “white hat,” or ethical, link building methods still work. It’s basically impossible to beg, borrow, steal, or buy quality backlinks in a way that will boost rankings. For site owners that used to rely on shady link-building tactics, this is bad news. But if you’re willing to put in the time it takes to earn valid links, it’s still entirely possible to boost your credibility (and rankings). I’ll explain six smart ways to earn legitimate, high-quality backlinks that will help show Google and other search engines that your site is worthy of high rankings. Dofollow backlinks allow Google, or whatever search engine is being used, to follow them and reach your website. Basically, these are links that will pass on the SEO benefits of the website where it is built from to the hyperlinked website. Dofollow backlinks created from high PR and high Domain Authority sources will pass on the link juices towards a hyperlinked blog. This will improve its ranking position significantly in search engines. This means that when doing SEO, it’s important to concentrate your link building activities on sources that allow you to build these kinds of links. Dofollow backlinks will remarkably enhance a business’s link profile and improve their page rank–what more could you ask for?