With SEO studies, the content that internet users encounter is ranked according to their quality scores. SEO (Search Engine Optimization) refers to the digital studies carried out to ensure that websites rank first in the search results. Commercial or corporate companies aim to increase the awareness of their websites and to be in the first place by positively affecting their image in the digital environment. In this direction, they get a professional digital service for their website by working with an SEO agency. Another known name of SEO agencies that provide SEO services to commercial or corporate companies is Digital Marketing Agency. Digital marketing agencies increase the quality and reliability of search engines by increasing the scores of websites with the content they prepare and some of the studies they do. As a result of the performance marketing agency work, the competition difference is opened by getting to the top of the search engines and getting ahead of the competitors. With the work of SEO SEM agency, the rate of visits to websites increases and the number of potential customers increases in the same direction. By supporting the SEO work done by the corporate SEO agency and the website advertisements, the websites not only increase the ranking, but also fix their place in the ranking.