1. Cloud DNS can resolve domain name differently according to the IP type of visitor to guarantee the access speed of visitor.
2. You need to set a default line to point to your specified record value before setting other lines. Only in this way can you guarantee that all users can access.
3. The free version supports 5 segment lines, China Telecom, China Mobile, China Unicom, CERNET and search engine (Baidu), and high defense version supports various provincial-level operator lines and the segment lines in Hong Kong, Macao, Taiwan and five continents overseas, with more than 170 segment lines in various countries. For specific information, please see Comparison of Cloud DNS Versions.

Note: The significance of segment line is that it can judge that the address of visitor is Beijing Unicom automatically, and then return the corresponding server IP of Beijing Unicom intelligently. Point to the corresponding server for the visitor more accurately.