UPDATE 1:

The DoS attack is going on. I will report it every day here.
Until 2025/4/9 11:09 PM, 47,085,003 bad requests from China in the past few days.
UPDATE 2:
April 10, 2025, the spammer stopped attacking for a while, about two hours.
Then change a new IP, start DoS again.
It is so funny.
Update 3
2025/04/13, three days passed. I can tell it is not finished.
Update 4
2025/4/16
There is still a DoS attack. They changed IP address again.
The IP address is from 111.79.126.123 to 111.79.120.132, now it is 111.75.35.174.
I don’t know why they did it.
Update 5
2025/4/22
The attack is still ongoing. I have no words on it. This is the last update on this issue.
I feel it is boring. I lost interest in it. They change an IP and run the program to send the request to my site continuously. When the bandwidth of this IP reaches a certain figure, it will stop for a while and change its IP address again. Then, repeat the steps.
I have a lot of fun stuff to do. I hope my work is creative, my time is productive. So I give up for this update. Since it does not hurt my website and VPS anymore. Only waste the attacker’s bandwidth.