Each of the following reasons may cause your solution to be invalid:

A. Is your domain name newly registered? The newly registered domain name will have a buffer time of about 24 to 48 hours (the buffer time for domain names in special countries, such as. sh/de/. ca, will be longer), and can be resolved normally only after the buffer time has passed;

B. Is your domain name renewed after expiration? This has a buffer time of about 24 hours;

C. Has your domain name just been modified by the address of the DNS server? After DNS modification, there will be a buffer time of about 24 hours;

D. Have you just modified the domain name resolution? The newly modified resolution will have a buffer time of about 2 hours;

E. Is your registered domain name. cn/com.hk？ This type of domain name needs to provide the registrant information to the registration bureau for review, and can be used normally only after the review is passed!