The objectives of this study are: (1) To analyze the extent to which the effectiveness of online business contributes to increasing sales turnover, and to analyze the factors that influence the success of online business strategies in increasing company profits. (2) To optimize market reach through appropriate digital marketing strategies. (3) To create added value or unique products to compete in the market. (4) Increase sales through a variety of products that suit market needs.The type of research that the author uses in this study is field research where to obtain accurate data, the author comes directly to the research location, namely the Zareen kebaya rental shop, Jalan Poros Kabo, Swarga Bara housing complex, extension block I no. 2, North Sangatta. The informants in this study were the shop owner and employees of the Zareen kebaya rental shop. In data collection, the researcher used interview, observation, documentation techniques and the data obtained, collected and processed descriptively qualitatively.Based on the results of the study, it can be concluded that online promotion at zareen kebaya rental is effective in increasing turnover through social media strategies, attractive promotions through video and photo content, customer testimonials, and responsive services that build loyalty. This method has been running well even though there are still obstacles. The obstacles experienced by the store are up and down sales, namely, monitoring demand patterns through social media, working with suppliers to increase stock, providing collections that can be worn at many events, and adjusting collections based on market trends. This strategy allows the store to continue to meet customer needs and increase sales.

Dengue hemorrhagic fever emerges in tropical countries like Indonesia. Bojonegoro is one of the highest districts with increased cases in East Java. The high incidence of dengue hemorrhagic fever in Bojonegoro is riveting to be explored related to some causative factors, including education and community behavior. Moreover, education affects an individual level of knowledge, which will impact a person's behavior that potentially affects the public health degree, especially the incidence of dengue hemorrhagic fever. This study aimed to determine the relationship between education and risky behavior in dengue hemorrhagic fever incidence in Mayangrejo Village, Bojonegoro Regency, East Java. A cross-sectional approach was used within a total population of 302 participants, and the Lemeshow sampling technique reached 67 respondents. Data were collected using a questionnaire distributed to residents' homes, while the Fisher's Exact Test was used for data analysis. The results showed a significant relationship between behavior and the incidence of dengue hemorrhagic fever (p-value = 0.024), and there was a relationship between education level and the incidence of the disease (p-value = 0.022). Performing health education and undertaking one House one Jumantik program is then recommended.