It is a bit difficult to give you an exact amount without first analyzing your site. The cost of SEO can vary from site to site depending on the overall condition of the site, its size and its current SEO results. The SEO of some sites may just require a few specific tasks such as a technical audit or On-page optimization techniques. Other sites may need long-term tasks such as writing content over several months, for example. All these factors can influence the duration of the service and, logically, its cost. But natural referencing must be a profitable investment. This is why at Twaino we take care to study your problems in detail in order to offer you a quality service at a better cost.