specific questions
found that some people can not open my website https://miaoqiang.name, or open super slowly, or display the text on the page, the css style does not load that.
the server is the server of Aliyun Hong Kong, and the certificate is a free one-year certificate of Aliyun.
my analysis
some people can"t open it. I thought it might be the problem of GoogleApi font library, but I have put CSS on domestic CDN. This part is sent.
resolve the problem, I let the person who can not open my website ping can also ping the ip address of my server, telnet my port 80 seems to be normal, but still can not open the site.
so I suspect it is the https certificate problem. I have turned off forcing https, individual response to be accessible with http, but it is also super slow and cannot be accessed with https.
solve
Ali Yun work order allows me to grab packages with wireshark on machines that I can"t access, which is not realistic because I can access it normally.
ask the gods to help analyze what"s going on.