They are all websites for graduates. The national employment service platform for college students is a public employment service platform run by the director of the Ministry of Education and the Center for Student Service and Quality Development of the Ministry of Education, serving college graduates and employers. Xuexin.com is the website for inquiring about academic qualifications of the Ministry of Education, the website designated by the Sunshine Project for College Enrollment of the Ministry of Education, and the website designated by the National Graduate Enrollment Adjustment, all of which serve graduates.