Com domain name is the most popular universal domain name format in the world, which is registered by international companies. Edu is usually only used in universities and other higher education institutions. net stands for service institutions, cn stands for China, and gov stands for government institutions.

China Postgraduate Admissions Information Network (hereinafter referred to as "Research Recruitment Network") is an authoritative channel for publishing postgraduate entrance examination information and an essential channel for graduate students to obtain information. From postgraduate colleges and professional information inquiry to postgraduate registration, examination results and adjustment, important postgraduate procedures must be completed on this website. However, many students may only think of the research and recruitment network when registering for the results, and ignore other functions of the research and recruitment network.

R & D.com will also collect summer camp enrollment announcements, exam-free announcements, enrollment brochures and other information released by colleges and universities, but it covers a large number of colleges and universities across the country, and some of them are not collected in time, which will be relatively troublesome to find. It will be easier and more convenient to query directly in official website, the target institution. There are also preparation guidance columns, including public courses, re-examination preparation, experience exchange and so on. Students can also check according to their own needs.