The internet advertising industry is constantly undergoing changes, evolving rapidly in response to new demands. Born from the evolution of ad network is DSP &SSP, a new field enabling greater possibilities for new internet advertisements. This field arose from the chaotic grounds of ad network in response to the increasing individual needs of both demand and supply. In addition to satisfying their individual needs, creating an enjoyable experience for end users on the internet is critical in improving the overall value of the relationship. At Cosmology, we believe the key to creating a better society lies in improving this relationship, and to achieve this goal, we strive to provide the best service that will satisfy demand, supply, and end users.