SEO stands for search engine optimisation, the process of improving the visibility of individual websites in search engines. There are many different aspects to a comprehensive SEO campaign, with most techniques split up into the two sub-fields of on-site optimisation and off-site optimisation. When Google and the other search engines have to rank a website, they look at a number of different criteria. It is not enough to simply analyse a website for its popularity, because this can be exploited by website owners. Instead, Google have decided to take a more detailed look at the overall authority of a website, which basically means finding a way to analyse its reputation. In order to do this, all of the major search engines count and analyse individual back links (Backlinks kaufen) in order to rank every website in relation to every other.

Every time that a website receives a live link from another website, this link can be found and analysed by the search engines. The search engines use software 'spiders' and 'robots' to crawl the Internet looking for interconnections between websites. By doing this, they are able to analyse the authority of each website based on how many other websites are linking back to them. Back links are also analysed according to where they come from, with the authority of linking sites also coming into consideration. This entire process may seem convoluted, but it is actually a very sophisticated way to measure the reputation and authority of every website on the World Wide Web. For example, if a website has a couple of links from a high authority site like the New York Times, they may be worth more than hundreds of links from unknown and untrusted websites.

Back links play an important role in SEO campaigns, because they are one of the best ways to build reputation with Google and the other search engines. While on-site optimisation is still important, and having quality content is the most important thing of all, back links can go a long way towards increasing search engine ranking. There are many ways to increase back links through SEO, including articles directories, blogs, link farms, and a variety of other methods. There are many SEO firms that specialise in the creation of high quality back links for individual websites, and combine this strategy with other aspects of a wider SEO campaign.