I DO FORUM POSTING BACKLINKS IN A VERY SHORT TIME Dofollow backlinks allow Google, or whatever search engine is being used, to follow them and reach your website. ... This 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.