In order to attract more visitors to its website and better target them, it is essential to make the site visible in search engine results. Despite simplistic appearances, this constitutes a considerable amount of substantive work, including updates - content, structure - and involves well-targeted communication actions... but not only.
Natural referencing is none other than a link from a page A to a resource B. This is why, since the advent of search engines, the objective is for a site manager to work on all the elements internal and external to the site so that the information contained on the site is more easily accessible to both Internet users and search engines. The decisive criteria that will be taken into account for a good SEO are 250 (!) at Google, the ultra-leader in the field. The notoriety of the site, the relevance of the content, the structure of the site, the quality of incoming links, the choice of keywords are, as such, essential.
The second strategy is based on the purchase of space. Advertising budgets are invested in the form of auctions.