Accessing Douban, I found that the CSS could not load. Looking at the source code, there was an error message "cdn error 001" after accessing it. I pinged it and found it was an IPv6 address, determining that the CDN's IPv6 was not configured properly. After modifying the hosts file to change the CDN address to IPv4, I accessed Douban again, and the CSS loaded normally.
The method of modifying Hosts is unstable, so I will change the DNS to Alibaba's IPV6 DNS to see how it goes.
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