Backlink - Wikipedia.
11 In January 2017, Google launched Penguin 4 update which devalued such link spam practices. The significance of search engine rankings is high, and it is regarded as a crucial parameter in online business and the conversion rate of visitors to any website, particularly when it comes to online shopping. 12 Blog commenting, guest blogging, article submission, press release distribution, social media engagements, and forum posting can be used to increase backlinks. Websites often employ SEO techniques to increase the number of backlinks pointing to their website. Some methods are free for use by everyone whereas some methods, like linkbaiting, require quite a bit of planning and marketing to work. 13 There are also paid techniques to increase the number of backlinks to a target site. For example, private blog networks can be used to purchase backlinks.